Leaderboard


Popular Content

Showing most liked content since 10/12/13 in all areas

  1. 2 points
    Minimal, I'm not sure it consumed more than a couple hundred MHz during the time we had it going in the background. We've been working with the Nexenta team over the duration of that review and they are still working on it internally. Should hopefully find out more soon on that topic.
  2. 2 points
    JEDEC spec for unpowered SSD retention isn't the same as data decay lifetime, but since I've already dug it up... http://www.anandtech.com/show/9248/the-truth-about-ssd-data-retention For drives that are worn out-- estimated wear left per drive spec (and reported via SMART) is zero: Client SSD: 30C ambient, 1 year. Enterprise SSD: 40C ambient, 3 months. There's some nice charts showing temperature vs. time relationships in there as well. Given we know that modern SSDs can run way, way past their specified lifetimes... quoted from the same link:: Micron states similar: http://www.micron.com/about/blogs/2015/may/addressing-data-retention-in-ssds
  3. 2 points
    Hah, they're not going to take Optimus Max to client systems any time soon, but they certainly could. I'd bet we'll have 2TB client SSDs next year though from Samsung and maybe Micron. SanDisk's client business isn't really that strong comparatively.
  4. 2 points
    Put them in a server and run some sort of SDS on top of it like Nexenta. Fun learning experience and gets you a cheap SAN.
  5. 2 points
    Note the three years in between though...they've been surprised by the interest in the platform I think. Now, if WD could just get those 2.5" Reds up to 2TB in a 9.5mm...
  6. 2 points
    Long-time watcher of StorageReview, but I registered just to be able to comment on this review. An excellent review, though your testing seems a bit high-end for the likely intended usage. I'd bet the majority of the target users for this SOHO device won't have a backbone that supports iSCSI or even dual-port aggregation. As you point out, 2-10 users in a casual / small office setting or for home use seems a likely audience. Such an audience would be much more likely to have an entry-level GbE switch as opposed to a managed backbone that costs 10x more. To that point, I've used the entire line of BlackArmor devices, and there are three critical issues common to them that seem to be repeated with the replacement Business Storage line... none of which are mentioned in the review, but they may not impact everyone so I'm not sure they necessarily bear mentioning up-front. 1) Performance. You obtained okay numbers in your testbed, but as summarized above, I doubt you'd see that infrastructure in the wild. I'd suggest you at least pair it with testing results from a cheapo GbE switch using a single LAN plug and simple Windows file sharing / disk mapping. Unless the BS line has markedly improved from the BA line, you'll see performance on the order of 15 MB/s read, 10 MB/s write. Horrendous for anything but backups, really, which is all I use my BA boxes for. Also, I recognize that there's a massive disparity of price points and target audience, but I get 110 MB/s--TEN TIMES the performance--from my Synology boxes, and 50-70 MB/s from my Drobos. And that's on a cost-conscious backbone of entry-level GbE switches using one LAN port per device and simple, iSCSI-less file sharing in Windows. There's no comparison at all. 2) Compatibility. Massively overpriced with disks, the BA and BS line are very reasonable when purchased diskless. I've used Buffalo, Seagate, Synology, and Drobo NAS boxes in small-business and personal settings, and diskless BA/BS boxes are far and away the cheapest way really of adding reliable (but not fast!) NAS storage in such contexts. But these NAS boxes only support Seagate disks. True, this is a Seagate device, but it seems as though someone had to intentionally code a rejection routine into the firmware, which is just kind of an obnoxious move. In addition, some of the compatibility notes for "certified drives" listed for the BA line are flat-out falsified--the diskless BA 400 will simply NOT work with the 1.5 TB desktop line of Seagate disks, period. 3) Risk. For those who know what they're doing, these are fairly easy boxes to deploy, and the web-based UI is second only to Synology's in my experience. But it's easy, far too easy, to make a catastrophic mistake. For example, if you set up a BA box using one LAN port, and then try to plug in a second LAN plug, it will not only not work, but it has a strong chance of corrupting the entire array, forcing you to not only lose all data and set everything up again, but in order to even begin to do so, you must eject each disk individually and reformat it using a separate computer. Otherwise it won't set itself up. Now, much of my comments above are from my experience with the older BA boxes, but I'd like to know if those issues have been resolved with the replacement BS line. Anyway, as always, I love seeing info on Storage Review.com so keep up the good work!
  7. 2 points
    You're almost right here. What's missing is that copying small files, even from the same directory, will automatically include some random access too. The files being read may be spread across the disk, they may be written different locations, filling up holes in the current file structure (what ever the OS see fit) and the MFT may be accessed. That's why multi-threaded copy for higher queue depths still improves throughput: the disk can arrange the accesses better through NCQ and can reduce access times. BTW: if the folders you're copying are often the same I'd look into incremental sync'ing with e.g. DirSync (nice freeware). Not sure it can increase QD, but it certainly saves time not to transfer untouched files again. And I'm not a fan of buying large SSDs for storage, that's often a waste of money (IMO). I'd rather use the SSD for temperary storage and as automatic cache. If you're concerned with many small files an SSD would be ideal. And if the SSD cache also buffers writes you may see a massive speed increase. The cache capacity would also be huge compared to the amount of storage required for small files MrS
  8. 1 point
    Neither reports a defective battery. It's just that the capacity has decreased a lot, holding little charge. The ibbu07 was at about 10% (reporting 300+ cycles) while the ibbu08 is hovering around 50% (despite reporting only 6 cycles). I wanted to a try a new battery that I have lying around, which doesn't costs me anything apart from a little fiddling time. For the eprom programmer, I guess you also need a converter from soic to dip. I'll try without any of those to see if it works. I'm hoping it will work, especially if I use an identical but new battery.
  9. 1 point
    The Veritas NetBackup 5240 appliance offers a heterogeneous backup and recovery suite and can be easily deployed into an existing NetBackup environment for expansion or acceleration. The appliance by itself offers a capacity ranging from right beneath 5TB up to almost 14TB before deduplication. Additional storage shelves can bring total capacity up to 148TB. The unit can be used as a master server, media server, or both and supports both VMware and Hyper-V virtualization environments. The appliance is offered in both the cost-optimized version we reviewed here and the 5300 model that is more performance-optimized. Veritas NetBackup 5240 Backup Appliance Review
  10. 1 point
    As far as the Data Domain’s appliances go, there will be four new models: DD6300, DD6800, DD9300 and DD9800. The DD6300 is a turnkey, all-in-one appliance that is aimed at smaller and midrange customers. The larger models are aimed at larger enterprises with the DD9800 being 7x more scalable, 1.5x faster, and can support 5x more streams than the nearest competitor, according to Dell EMC. The new appliances will be running the next-generation DD OS 6.0. This new operating system introduces the Data Domain Cloud Tier, as well as advanced integration with Hadoop. Dell EMC Upgrades Data Domain Around Flash
  11. 1 point
    If you want to laugh out loud at my reply, please do so. I don't know how much data you need to migrate: without that knowledge, what I'm about to say may be totally in appropriate. Several years ago, malware hit our SOHO network and "migrated" to every machine in that network. It took 8 DAYS to re-build everything and disinfect every machine. After that burn, we decided that THE BEST WAY to keep a PC virus-free is to TURN IT OFF!! (lol here is aok Whenever we have been faced with a similar challenge, we ALWAYS start with a FULL BACKUP of all data, including of course the operating system and all files and databases. That FULL BACKUP is copied to one of our aging "backup servers" and then we turn that backup server OFF -- COMPLETELY OFF. Because PC hardware is so cheap now, and because some data bases have become invaluable e.g. mirror images of a website, we do not hesitate to maintain cheap "white boxes" with aging CPUs that do very little except to XCOPY data from here to there. We have even perfected a PUTT and GETT pair of Command Prompt BATCH files that do the job very well, particularly when we only need to backup a sub-folder in our website mirror. Our consistent approach has also been to maintain a formal separation between C: system partitions, and all other partitions. Every discrete storage device or RAID array is formatted with a primary partition exactly equal in size and contents to the Windows C: system partition. The remainder of each such storage device is formatted with a Data partition e.g. D: or E: (in Windows parlance). All of our key workstations host at leasat 2 identical copies of the same OS. From experience, we know that it doesn't take too much to completely corrupt a working OS e.g. the other day, a HDD crashed and that crash ended up corrupting the Windows Registry. So, with our dual-OS setup, we simply re-booted from the backup OS and restored a drive image of the primary C: partition: piece o' cake. As such, my first choice is your Option "A", making sure that you have a working "backup server" with redundant backups of all operating system and dedicated data partitions. Trying to mix HDDs and SSDs sounds like too much work: the future is solid-state, and I think you should migrate now to new system with SSDs and a quality / compatible RAID controller. You can buy large HDDs for your backup server, the sole purpose of which is to archive multiple redundant copies of really important data. Hope this helps. p.s. I would be very interested to read more Comments from others who study your question.
  12. 1 point
    First, back up the data...but generally either will be fine. I lean a little Samsung, but that's just personal preference.
  13. 1 point
    One more thing: just because a PCIe expansion slot is mechanically x16 (full length), the chipset may be assigning a fewer number of logical PCIe lanes to any given slot. We've been circumventing that behavior by installing our RAID controllers in the first x16 expansion slot, which is normally where x16 video cards are inserted. (In our office, we have no need to super high-bandwidth video.) Since you intend to install a RAID controller with an x8 edge connector, you should be fine as long as you confirm that the chipset is also assigning x8 logical lanes to that expansion slot, NOT x4 or less. Your motherboard User Manual should have documentation on this point. And, there may be a BIOS setting which controls how many lanes are assigned to the other x16 slots below the primary slot (closest to the CPU socket). Also, very often the summary Specs that are published in motherboard marketing literature also document the lane assignments for each PCIe slot e.g. if your motherboard is still being sold by Newegg.com, those Specs should be in Newegg's description of that motherboard. Look for text like this: "x16 / 0" or "x8 / x8" "x16 / 0" means x16 lanes are assigned to the first expansion slot when the second expansion slot is empty. "x8 / x8" means x8 lanes are assigned to the first expansion slot and x8 lanes are also assigned to the second expansion slot when both slots are populated. And so on. You wouldn't want your upstream bandwidth cut IN HALF merely because of lane assignment decisions that were made by the chipset without your knowledge or control e.g. from x8 to x4.
  14. 1 point
    We had troubles with an Adaptec SFF-8087 cable: there was something proprietary about that cable. We switched to a StarTech SFF-8087 cable and it works great with our Highpoint RocketRAID 2720SGL. MRFS
  15. 1 point
    Hello! I'm torn between buying one of these 3 drives for use as my PC's boot drive: Seagate ST2000DX001 SSHD: 196BGN (~113 USD or 99 EUR) Toshiba DT01ACA200: 144BGN (~83 USD or 74 EUR) Toshiba P300 HDWD120EZSTA: 167BGN (~96 USD or 85 EUR) Looking at them, you might say that the SSHD is inherently better, however I'm worried about the reliability of seagate drives in general. Out of the 17 "broken" PC's I was busy diagnosing and repairing last month, 5 had dead hard drives, 4 of which were Seagate drives. As for the new Toshiba P300 series, the reason for me to consider it is that the other Toshiba drive I'm looking at is a bit old at 54-ish months. That and also the fact I'm expecting some performance improvements with the P300, although I haven't been able to find any benchmarks to confirm this. Regarding SSDs: I'll get one about a year from now, when I'll do a complete system upgrade. It's not economically feasible for me right now. Regarding WD Blacks: They're far too expensive where I live, nearly twice the price of competing 2TB drives. And from reviews I've read, they seem too noisy and hot. Regarding why 2TB and not more: My current PC is rather old - 3.8GHz E8500-based, which means it doesn't have a UEFI BIOS, which means I can't utilize a drive larger than 2.2TB as a boot drive. So what's your opinion? Has anyone had any experience with these P300 drives?
  16. 1 point
    > performance is my highest priority Then, if you intend to install a Windows OS, be sure to format the C: system partition at ~50GB, and format the remainder as a dedicated data partition e.g. D: or E: etc. Historical research has proven that HDD linear recording densities are fairly constant: this means that there is much less data on innermost tracks, and there is much more data on outermost tracks. The amount of data on any given track is directly proportional to track diameter. Formatting a second data partition is also very useful for backup reasons e.g. drive images of your C: partition can be written to the data partition, and easily restored if your C: partition becomes infected with a virus or malware. This measurement from many moons ago illustrates the drop in platter transfer rates from outermost track to innermost track for a variety of HDDs popular at that time:
  17. 1 point
    I'm sure HPE has some great whitepapers on best practices for LUN design based on workload types.... Otherwise, call your re-seller up, ask them to speak to an HPE SE, and get his take on best practices.
  18. 1 point
    I've worked with the DotHill platforms for a while now, and while they do OEM builds for the HP MSA line I'm not completely sure what your interface looks like. With that said, do you know if you are using the "Linear" pool creation, or virtual pools? Maybe a screencap of how the LUNs or pools are created would help. My overall plan would be using your RAID5 disks and making one large RAID5 pool split into the 3 disk groups. This way you would have one large 16TB pool to carve out your LUNs from, and gain some performance through the controller striping across the disk groups in a RAID50-fashion. On your RAID10 disks I would do something similar, making 4 RAID1 disk group pairs on your other controller, again giving you the benefits of striping.
  19. 1 point
    The only limit of concern lately is the 2TB drive limit, if a SATA to USB docking station says it supports drives 3TB, 4TB, or larger, you should be good for any disk currently on the market.
  20. 1 point
    Any chances of a review, in special of the unencrypted 2TB version ST2000LM007 ? I'm curious about what would be performance of such a SMR drive, if possible with a OS installed, compared to other HDDs that are PMR.
  21. 1 point
    It really depends on if you are disk I/O bound right now. Newer products are always nice and fast, but if you aren't pushing your current storage to the limit it might not have an improvement (or a large enough one to make it worthwhile).
  22. 1 point
    Available in capacities up to 2TB, the Intel P3700 is at the top drive of the family, which is designed for both mainstream applications and storage system providers. Intel has certainly introduced their new family of NVMe enterprise drives in a massive way with three different lines and two different form factors (2.5" and PCIe add-in card) that span a grand total of 12 different capacities. There aren’t many companies (besides the big three) that can afford such an impressive launch. The P3700 drives and their family are also vertically integrated solutions, meaning the Intel produces the controller, NAND (20nm MLC) and firmware (Intel also provides driver support for operating systems). This allows Intel to better understand the drive's characteristics, allowing them to effectively support their drive and offer more streamlined enhancements in the future. Intel SSD DC P3700 2.5" NVMe SSD Review
  23. 1 point
    That card is top notch... can't really go wrong there. You have ~4GB/s of bandwidth using SAS3 / 12Gb/s with that single 4-lane connection to the hard drives. Theoretically those drives in a best-case scenario could push 200MB/s each, or ~4.8GB/s total... but that is outer edge and all drives in RAID0.
  24. 1 point
    Data centers consume massive amounts of energy and need tremendous amounts of water for cooling. A midsized data center can consume as much as 130 million gallons of water a year, or enough water for 2,000 people. However Nautilus’s method consumes almost no water, which makes it near 100% savings in water regardless of how much is normally used. The waterborne data center is on a barge that uses the naturally cool water beneath the barge to cool the data center and then it returns nearly all of the water. Nautilus Data Technologies Successfully Launches Waterborne Data Center
  25. 1 point
    We rarely get that kind of material before a sale, so I'm of no help. However, I would say $279 seems like a darn good deal considering. I hope you find it and report back here when you do!
  26. 1 point
    The RC18015xs+ gained the honors by being a high availability cluster used for virtual storage, can scale up to 1.4 PB, and handles 2,000 users. Judges were from an independent team comprised of experts and editors from SearchServerVirtualization.com. Entries were evaluated for innovation, value, performance, reliability, and ease of use. Synology RC18015xs+ Named Best Of VMworld 2015
  27. 1 point
    I have a built-in HDD in my new laptop, counted everything that is in it plus the free space and the sum is 726GB, but my HDD says that 913GB is usable (1TB HDD). So my question is, where is that missing space? Yes, I have it set to show invisible folders, too. (THE 180GB FREE SPACE IS COUNTED IN THE CALCULATOR) Thanks for help
  28. 1 point
    This paper ( https://www.usenix.org/conference/fast15/technical-sessions/presentation/aghayev ) gives a more detailed explanation of the drive's behaviour, and especially its vulnerability to sustained random writes. If that's a significant part of what you want to use a drive for, then it's clear that this drive isn't for you. Whether this category covers "most end users" is an open question. One interesting idea I did see floated on another forum to improve SMR's performance even further was to make it a hybrid drive, with the drive's SSD acting as the drive's persistant cache.
  29. 1 point
    Synology's new DiskStation DS1515+ is a 5-bay NAS that houses up to 30TB of raw storage, a quad-core 2.4GHz CPU, and up to 6GB RAM (with upgrade). It was designed for demanding use-cases and serves reported transfer speeds of 450MB/s and 396.5MB/s (read and write, respectively). Like many of Synology's offerings, it also prioritizes security, providing AES-NI encryption with very little decrease in read speeds, in addition to a suite of other features. Each DS1515+ server is scalable up to 90TB (with two Synology DX513 expansion units), and multiple DiskStation servers can be consolidated through Synology's Central Management System (CMS) for enhanced administrative efficiency. Account integration is easily done thanks to support for Windows AD, LDAP, and Domain Trust. Synology DiskStation DS1515+ Review
  30. 1 point
    At least the Swans look safe from relegation
  31. 1 point
    With free ESXi you would just add the new storage device as a new datastore. For your environment it almost seems as though caching might be a good alternative, but you are going to have to get creative to make it work. Enterprise-grade caching software at the hypervisor level will be far out of your price range (2000-3000 per host) and they all require enterprise ESXi licenses which might cost 2000-3000 per CPU. Now one option could be if your RAID card supports SSD cache. Buying a new RAID card with that feature would cost more than the investment in consumer SSDs, so not the best upgrade path if you don't have the support already but its worth checking out. I hate to say it, but unless you can shrink those VMs with thin-provisioning or somehow rebuild VMs so I/O intensive volumes sit on flash and the rest on a HDD, you don't have any cheaper solution than buying large consumer SSDs. Could you post a screenshot of the advanced performance tab showing disk activity? Curious what you are seeing in peak access times during boot.
  32. 1 point
    The new WD Black is fast - beating all other 4TB competition in every test. WD Black 4TB Desktop Hard Drive Review (WD4003FZEX)
  33. 1 point
    How does one of these compared to a now-obsolete 3ware 9750? Biggest thing holding me back from switching off 3ware is the migration times.
  34. 1 point
    Ultimately the storage-centric R730xd offers new degrees of flexibility for those who want to keep storage as close as possible to the compute layer. The chassis has a lot of potential in SDS situations too, something Dell likely had in mind as they continue to innovate generation after generation with leading storage server solutions. Dell PowerEdge 13G R730xd Review
  35. 1 point
    What Progressive Capacity means is that WD can use odd-formatted platters in drives in boxes of 20 drives to hit a specific capacity point, like 1PB. The capacity of the drives within that box to hit a 1PB target are somewhat irrelevant, data centers looking at this class of drive often are not using RAID and are more concerned about capacity in a specific footprint. WD Ae Cold Data Storage HDDs Announced
  36. 1 point
    Hello My laptop shuts down without any message & some times it just get freezed. I updated my windows VISTA through windows update. Now the error message shown during boot up is failed to load winload file- Repair the windows. I took out the harddrive & connected to my brother's laptop. I ran disk check & following results are shown. It found 1 bad cluster. Do i need to change my hardisk? Diskcheck results are attached. Please help!!!!
  37. 1 point
    Specifically, they have little ability to innovate going forward and I question their ability to build a proper support network. Note that the opinion is largely based on a US-centric slant, some brands have better adoption in Europe or Asia for instance. The decision to rebrand the M550 is a pretty clear case. They had no ability to create a new product with the delays in SandForce, so the best option was to copy Micron and hope to make money by selling a slower version for $10 less? Poor business sense and not something I'd invest my money in as an SSD buyer.
  38. 1 point
    I don't know what your deal is, but they do not, and never have sold refurbished drives in external drives. Total nonsense. I've been buying Seagate externals and shucking them for years, and I've never once got a refurb inside. They've got normal drives in them, sometimes with slightly different firmware, but otherwise normal drives. I'm currently using 4 Seagate drives I pulled out of external boxes, an old 2TB Barracuda LP (nearly 4 years on that drive), a 3TB Barracuda XT, and two 4TB Desktop.15 drives. All are in a NAS box, and all have run perfectly. Buying externals sometimes means you lose warranty (sometimes the bare drive will have warranty, sometime it'll be an OEM drive with no warranty), but it's a cheap way of getting the newest drives, and I personally prefer buying externals and shucking them than risk buying a bare drive that may have been mishandled somewhere along the supply chain. Only drive I've had that's failed recently was a 1TB WD Green shucked from a Toshiba external drive years ago, but it had a hard life in it's external box before I ripped it out and used it 24/7 for a year at which point it died.
  39. 1 point
    Millions of computers rely on SSD for the system drive, there's no need to fear it. Back up regularly and you're in good shape should something go bad. HDDs fail without warning too. Red is not advisable or supported in PC. 5K vs 7K is probably less relevant for you in terms of large sequential reads and writes.
  40. 1 point
    When you swap your board you need to reactivate your Windows 7, I did this in January. My used copy was a System Builder edition you can buy in Germany without a PC. I just did a phone activation and everything worked fine.
  41. 1 point
    I don't trust any programs that can migrate just programs. It depends on the program and OS, but IMO, it is better to take the time to reinstall it. Games might be easier to depending on how you installed them. For example, games through Steam are easy to migrate(see here) I would: 1) Make backups of all important information 2) Install SSD and disconnect the hdd(prevent swindows from putting some boot files on the hdd) 3) Install windows 4) Install the hdd and assign it a drive letter. 5) Install what you want on the SSD. Programs on the old HDD shouldn't cause any conflicts so you can either just delete the folders or leave them there. 6) When installing new programs, make sure to verify the install path.
  42. 1 point
    i own this drive (i opened up and extracted the 2TB Seagate Backup plus Slim) and installed it on my laptop (alienware m17x r3). my question is, is it normal or safe that the drive is at 49-53 C while under load? my Toshiba 1.5TB (2.5" 12.5mm also installed on the laptop) runs at 35-38 C under load
  43. 1 point
    What is your timeframe on this? Can it hold off a little bit? We are getting our large batch of HGST drives in at the end of the week and the first test will be eight loaded into our 1813+. Let me see what the performance is on those compared to the Red's first
  44. 1 point
    We hear you...here's the deal, we only have one 512GB sample of the Pro we got at the time of the original review. We need at least 4x512Gb to run our enterprise tests. I'll ask Samsung now for those samples and see what they say. If they free up the drives, we'll get you a review. If not...sadface.
  45. 1 point
    TLC, at least Samsung's version, appears to be the solution to the price/capacity battle for consumer SSD. It's not inherently evil and keeps the price of SSDs under control. I'd guess we'll see more of it soon as the other majors struggle to catch up to Samsung, who's clearly dominating in this space.
  46. 1 point
    Not the pro sadly, just the regular desktop form factor 4-bay guy. Yes, we're based in the US but our readership is global.
  47. 1 point
    Hi don't know exactly what your budget and needs are, but this would be my dream SQL box. - Boot/OS/Binaries/pagefile/crash dump : 2 mechanic HDD in mirror (Can be slow you only boot OS once. Pagefile swapping might be slow but with proper amount of memory allocation there merely be any.) - Raid (0+)1 of SSDs for SQL logs - Raid 6 of 4 15K SAS for SQL databases Now if the database data are small enough: - Raid 1 of SSDs for data - raid 6 of 4 10K SAS for BLOBs/File stream storage (optional) Hope that gives you ideas m a r c
  48. 1 point
    It's believable because we are reporting this as fact. Typo Something official is probably coming in the next week.
  49. 1 point
    you overpayed, a $15 cable would suffice for anything shorter than ~6ft for 1600x1200. If somebody needs these, maybe ebay would be the best place to sell them.
  50. 1 point
    Hello all, I'm looking for a good multi-purpose proxy server for the sole intention of self-education. Preferably, ones that do both packet filtering and caching. I've got myself an old P3 box that I've installed FreeBSD in and have spent a good two weeks tinkering with ipfw packet filter software among other things. I think it's about time that I upgrade a notch further with proxies. I've checked Squid but at this point, I would prefer an all-rounder. A few additional queries : 1) Why do *most* if not all, streaming packets (videos, mp3s etc.) travel over UDP not TCP? I notice that it has something to do with UDP's stateless protocol but I couldn't make that one out. 2) As in (1), why *in general* does a UDP connection is considered a security issue? 3) This may sound a little stupid but how do a DoS attack happen? For the knowledgables, I hope you can contribute something to this thread. Thank you in advance.