Kevin OBrien

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Everything posted by Kevin OBrien

  1. Sounds almost like the drive failed. If you take it out of the group and plug it into something else does it report anything?
  2. 200TB SAN/NAS for feature film

    While ZFS might have some FS improvements some could argue, the dead simple file sharing capability and speed of SMB3 makes Windows the preferable option IMO.
  3. 200TB SAN/NAS for feature film

    To put a bit of perspective on the CPUs, I was able to hit ~2.1M IOPS at about 20GB/s (bandwidth wasn't the limiter, only IOPS) on two 2.9GHz CPUs with 8 cores each. With the HDD platform you are looking at, nearly entry CPUs would probably work, file serving at this scale is very lightweight. Leveraging SMB3 for your file transfer protocol would be optimal if each side is Windows-based. (Win8+ and Windows Server 2012+).
  4. 200TB SAN/NAS for feature film

    The newest processor lineup naming is still new for me, but if you shoot me a link to that page I'll give you a few options that make sense. Its really a clock speed times core count question.
  5. 200TB SAN/NAS for feature film

    On the chassis, that model should work, although there may be better options out there, I haven't looked at the models vs pricing in a while. Getting a full package with chassis + expander + motherboard + SAS card would be better knowing you get matched components. CPU load for HDD storage is pretty low, you could go for fairly low-mid range CPUs and get out just fine. Same with DRAM... 16-32GB would probably get the job done easily. On NICs, really depends on cost versus what you need. Are you going direct attached to bypass a switch? I'd probably look at the Intel X520 or X540 NICs which are pretty cheap, and get three dual-port cards. Use one in the server and the other two in the desktops, direct attach with static IPs. If you have budget for a switch in that mix go for a Netgear model. Do a 2 SSD combo (240 or 480GB light enterprise) for RAID1/mirror boot drives.
  6. 200TB SAN/NAS for feature film

    Windows Server and either hardware RAID or Storage Spaces would give you the sharing aspect you are after... at that point your bottleneck would be whatever network connection you planned on leveraging between the workstations and the server. I'd personally look at a Storage Server option from Supermicro... same basic chassis, but has the motherboard as well.
  7. Netgear ReadyNAS 4312X Review

    Nope, that IOPS figure is correct. For a pure HDD system, iSCSI 4k random is pretty tough.
  8. The Imation RDX Media Secure Docking Station and its paired RDX cartridges featuring Media Secure Client software provide users with an alternative to tape storage solutions and standard external hard drives used for backup purposes. The RDX Docking Station furnishes users with the speed of USB 3.0 connectivity and the long-term scalability tapes have historically provided. The cartridges have wide-ranging capacity offerings and beyond that, they come in both standard and encrypted models allowing users to choose the features that they need to meet budget or compliance restraints. That said, the Imation RDX Media Secure is positioned for the SMB market and this particular iteration can meet the backup needs of either a workstation or a small server group. Imation RDX Media Secure USB 3.0 Review (RDX-USB3)
  9. VMware VSAN 6.2 All-Flash Review Discussion

    Our disk group number was governed by the number of cache SSDs we had. We needed an even split, so that's how we ended up in 4 groups of 4+1. Building a setup from scratch you'd probably want to leverage something that makes more sense from a cost perspective, since as we saw the SSDs didn't have a limit on the performance of VSAN, it was more that we hit the top end numbers in general for the platform at the time we reviewed it.
  10. Adaptec’s Series 8 line are 12Gb/s RAID adapters featuring an end-to-end PMC architecture that incorporates PMC’s I/O protocol controllers, RoC controllers, SAS expanders, and software. The Adaptec Series 8 cards boast a significant performance improvement compared to its previous generation of adaptors, as they are quoted to be significantly faster than their predecessors. The Series 8 cards are also equipped with maxCache Plus technology, which supports both caching and tiering functionality and allows IT managers, system integrators, and ISV's to reap the fastest performance and best overall value from their storage systems. maxCache Plus also provides users the flexibility to configure their storage devices in server environments as well as allowing the fastest media to be used as storage instead of only cache. As a result, this maximizes the potential of the newest 12Gb/s drives on the market. Adaptec Series 8 RAID Controllers Review
  11. What resolution are you testing with? I think depending on the startup settings it tests at the 1920x180 resolution or in 4K... maybe your numbers are at 4K?
  12. 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.
  13. It was using that. Setup itself wasn't too long so for all practical reasons it's pretty close to turn key.
  14. Crucial M500 alternative

    Stick with the brands that have their own fabs. Samsung, Crucial/Micron, Toshiba/OCZ.
  15. HPE MSA 2042 vs NetApp E-2724

    We're leveraging the FC side with a Brocade 6510. So far performance has been fantastic, outpacing some other all-flash units in fact. Very fun platform.
  16. Launched back in early 2015, the Intel DC S3610 Series is a line of SATA 6Gb/s SSDs intended for applications such as virtualization and e-commerce. These SSDs are equipped with 20nm Intel NAND Flash Memory technology designed and offer a blend of endurance and performance. Intel quotes the DC S3610 with sequential read and write speeds up to 550MB/s and 520 MB/s, and random 4k speeds up to 84,000 OPS and 28,000 IOPS for reads and writes, respectively. Intel also claims a Quality of Service of 500 μs for random 4KB reads measured at a queue depth of 1. Intel SSD DC S3610 Series Review
  17. NVIDIA Quadro P2000 Review

    Pass through I don't know, but noise level was silent. You could tell it was on because the fan blades were moving, but even with the cover to the desktop off you couldn't hear it.
  18. Western Digital announced the WD Sentinel DX4000 last month in an effort to bring easy to configure NAS storage to SMBs with fewer than 25 employees. At the core of the Sentinel is Microsoft's Storage Server 2008 R2 Essentials, an Intel 1.8 GHz Atom dual-core processor and two or four WD RE4-GP hard drives. Western Digital sells the Sentinel pre-configured with drives in either 4TB or 8TB models right now, with 6TB and 12TB models coming early next year. Given the Sentinel arrives with drives and is ready to roll, all it takes to get going is powering the unit up and connecting to the network, which is great for those who aren't used to dealing with storage appliances. Given the Microsoft software though, there's still plenty to tweak under the covers should SMBs with access to IT professionals care to do so. Read Full Review
  19. Western Digital Sentinel DX4000 Review Discussion

    Given this is based around Windows software RAID, have you tried loading the disks into a JBOD (4 at a time), connecting them to a dedicated Windows Server 2008 R2 or S2012 R2 platform and importing the RAID groups? It would also be wise to contact a data recovery company, since there may be an easy solution to recovering the data through a RAID group import in a secondary system.
  20. Intel SATA chipsets generally perform much better in single drive situations than the LSI HBAs. Those numbers you are seeing look pretty normal. You'll notice more with higher loads or additional drives.
  21. Most Common RAID Controllers

    LSI 9200 and 9300 series I'd say are more common than dirt. Most haven't changed dramatically over the years either. Getting those versus Adaptec will basically cover the majority of the market.
  22. Micron 5100 MAX SSD Review Discussion

    The HK4R isn't SAS and the price you have is way off. CDW retail is 1294 https://www.cdw.com/shop/products/Toshiba-HK4R-Series-THNSN81Q92CSE-solid-state-drive-1920-GB-SATA-6Gb/4421240.aspx Volume pricing I'm sure is much better.
  23. Possible Bad SSD - OCZ Vector

    Data corruption can be a tricky one to pin down. Bad cables, bad drives... consumer devices don't have the best error correction capabilities. See if the EVO stays clean.
  24. If you reboot node B does it move back to A? In windows there was also an area to manually move it back and forth.
  25. Intel p3608 MySQL OLTP

    That is correct and why we reported the 4 individual VM values in the charts. The MySQL databases only need ~300GB each, the SQL server stuff needs about 700GB each.