Slade

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Slade last won the day on February 20 2017

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  1. You have already created a RAID 1 array from the 2 disks. If you want to change it to something else you need to delete that array and create what you want. Basic is their use of separate disks and what they call JBOD is really akin to RAID 0 (so no fault tolerance). You don't have any disk groups, a Synology disk group comprises of one or more drives combined into a single partition, which would be like RAID0 or RAID5..
  2. Reliability of ST2000LM007

    My experience with the 2.5" Seagates is good, but never rely on a single drive for backup. Anything important should be on other devices, preferably in other locations. And always be careful to eject the drive before detaching to ensure that all writes are done, and use a UPS on your computer so it doesn't power off during writes to external drives. Just a few of the fun ways that USB drives can hose your data, whatever the drive size.
  3. While with most controllers that I have used I would just delete the array and then recreate it as JBOD then run DBAN, some Dell servers won't allow that but apparently will allow you to set each drive as a RAID0 and run DBAN like THIS guy describes.
  4. Controller for 4 8tb sas drives

    If you are sure that you will not expand beyond 4 disks *and* your HGST drives are 512e (not native 4k) you could consider an Adaptec 6405. I have a 6805 with 8 x 8TB He8 drives that works quite well as my backup storage to a newer 8805 setup. While Microsemi (now the Adaptec owner) has only done limited drive testing, HGST has a more extensive guide for their drives HERE. At one time I investigated using 4K native drives with the 6805 and found information that it would not work but have since lost the link. Newegg has the 6405 (which is 6Gb/s that I agree is more than adequate if you only use spinners) available for $269 after promo code HERE and then you will also need one Internal mini-SAS with power (SFF-8087 to SFF-8482) cable that is a 1 8087 to 4 SAS fanout cable and runs under $20 on Amazon and elsewhere.
  5. Can anyone tell me if you get full 10gbs speed when using both ports of a card between the two other connected devices using the same cards and 5m appropriate cables?
  6. Anyone tried this product?

    I've used quite a few IcyDock products but not either of those. Their hot swap front case caddy is handy if you swap drives around a lot https://www.amazon.com/DuoSwap-MB971SP-B-Drive-Caddy-Docking/dp/B007Q4EZEA
  7. There are no video links on YouTube for what you need, assuming you must have the data you *must* use a recovery service that will open the drive in a clean room and attempt to copy the data to another drive. It is not guaranteed to work and if it does it is very expensive. Now read all of the responses again, and you will see a theme -- you cannot do anything about this yourself and to use a proper service will be very expensive. In the future you will never again forget the importance of good backup practices.
  8. 512e or 4Kn Format

    Update. Things went very well with the new array. I used 5 8TB He8 512e drives and an Adaptec 8805 controller. I stuck it into my NAS box on the second x8 PCIe connector (the first has my old 6805 with 8 3TB in RAID 6), installed the Win 7 x64 driver and after the build was good to go. Took around 30 hours to build the RAID 5 and 14TB of data transfered from the old array to the new at 500-600MB/s.
  9. 512e or 4Kn Format

    I selected the He8 for their reliability and needed a large space with as small a number of drives as possible, plus I got the 8TB drives for only $441 each. Enterprise quality (10E15, 2.5M hours MTBF) 8TB drives are not terribly common AFAIK and I have had excellent results with HGST enterprise drives since they first came out. I don't feel comforatable with the Seagate SMR 8TB drives yet, so they were not considered at all, and most of the Seagate offerings are only 10E14 drives with MTBF around 1M hours. The energy savings of the He8 will just be a bonus since they will run 24/7. So far I am very happy with the drives, and the Adaptec 8805 that I went with instead of the 71605 since i got it for over $250 less and really didn't need 16 ports. I'll give an update report in 3 or 4 months after the data migration is complete and the new array has had some service time.
  10. I'm looking at the HGST He8 drives for a RAID 6 array. Is there any particular advantage to using the 512e format or 4Kn format as both are supported by the Adaptec card that I am using? The 512e seem a bit cheaper in the 8TB capacity. Thanks!
  11. Samsung 2TB SSD: when?

    Why settle for only 2TB if you have the budget? http://www.anandtech.com/show/9455/samsung-releases-pm863-sm863-enterprise-sata-ssds-up-to-384tb-with-3d-vnand
  12. RAID 6 writes have really slowed

    I got lucky -- second disk I pulled was the problem. Stuck in a replacement and rebuild is done. Not sure why maxView didn't detect it, but the card is out of warranty so no more support. Thanks
  13. I have an Adaptec 6805 with 7 3TB Hitachi 7200rpm disks in RAID 6 (Win 7x64, i3-2100, 8GB RAM, just a storage box no other tasks). 6-8 TB empty space still and updated to the latest firmware and storage manager software. Reads are as good as ever, but over the past few weeks writes have slowed to a crawl, like 20MB/s. All disks and the array indicate optimal status from the boot screen and storage manager software. It sure seems to me like a disk is bad, just hard to figure out since they all are listed as optimal. Any ideas on troubleshooting this? Thanks!
  14. Big sale on some LSI RAID cards at Newegg today -- I figured that it was an error but checked and it is 50% off the already discounted price for some models today 12/2.
  15. I have two of the 32GB models and they are great for those of us who are tough on things, mine have been through the laundry many times with no ill effect or data loss. Not intentionally, but the GF does not check pockets on laundry day.