Search results for query: SMR

  1. Impact

    Moving container on LVM thin volume to smaller storage

    ...GUI's status and graphs doesn't handle slow/missing storage that well and can get stuck. I don't know for sure why it would take so long. All I can think of right now (besides SMR which your WD80EDAZ isn't) is that maybe the chunk size isn't optimal for a HDD. You can see it with lvs...
  2. J

    Backup Recommendation

    Thanks, more carful planning to consider. I might fork out some monies and get x2 m.2 or SSD of the same brand/type for redundancy/availability on the OS side of things. Anything you recommend for price to performance ratio? I actually have a Synology NAS laying in dust. I think it has x2 of...
  3. P

    Backup Recommendation

    ...performance differences and I don't know if this may cause other side effects. You should also avoid mixing and matching TLC and QLC NAND or SMR and CRM in hard disks. Otherwise, as long as you're fine with the performance/capacity of the slowest/smallest drive, it shouldn't be a problem.
  4. B

    Offline USB Backup mit PBS – Removable Datastore zu langsam, welche Alternativen nutzt ihr?

    ...deuten auf ein anderes Problem hin: USB 2.0 statt 3.0? (lsusb -t prüfen) Filesystem-Overhead? Welches Filesystem liegt auf der USB-HDD? HDD im SMR-Modus? Günstige HDDs mit Shingled Magnetic Recording brechen bei vielen kleinen Writes massiv ein Zum Erstbefüllungs-Problem: Wie @Johannes S...
  5. UdoB

    How bad is this?

    I don't think so: https://blog.westerndigital.com/wp-content/uploads/2020/10/wd-red-family.png But yes, it should get replaced, in my opinion. With enough redundancy on the vdev level you could run a "long self-test" and then wait for "Currently pending" rising again. But that's a dangerous...
  6. K

    How bad is this?

    Wouldn't bother scrubbing, it's probably SMR. Replace with CMR and have a happier life
  7. J

    The New Guy to Homelabs based on linux

    ...I use ZFS (provides checking-summing [data & metadata], compression, snapshots) on CMR SATA drives. I am guessing your 14TB drives are SMR which will NOT play nice with ZFS primarily due to resilvering. You'll need to confirm if your 14TB drives are CMR or SMR. If SMR, you'll need to use...
  8. B

    ZFS Pool Errors/high IO delay

    the WD Red Plus Series (only Plus or Pro, the regular WD Red is SMR) is always CMR and ok for ZFS. Im using 14 of them (4TB variants) in 2 Truenas NAS and havent had any type of issues with them for years. of course like any drive they can break, but by design they are fine for ZFS. those...
  9. K

    ZFS Pool Errors/high IO delay

    ...in a zpool with WD Reds, which look like they're CMR and probably OK. Don't try running ZFS with desktop-rated drives, especially if they're SMR. If you like Seagate and want to stay with the brand, replace them one at a time with Ironwolf or Exos. Basically, replace the Barracudas with...
  10. leesteken

    ZFS Pool Errors/high IO delay

    With SMR drives (or QLC SSD), I would expect write errors (due to timeouts caused by the bad performance). The checksum errors suggest that there is another issue like cables (as already mentioned), controllers or even memory (but unlikely with errors on one drive only).
  11. news

    ZFS Pool Errors/high IO delay

    You can replace "bad" drives, so by 4 new one: Because *) Seagate ST8000DM004 8 TB store data with SMR (Shingled Magnetic Recording), that's very bad! Only use CMR Drives from Seagate NAS Pro Change all your SATA III cable, buy new one and please check SATA III (600 MBit/s) with a clip rated...
  12. news

    HDD Empfehlung

    Ich wollte mal nicht so direkt sein und schön, dass Du nun den korrekten Weg beschreibst.
  13. B

    HDD Empfehlung

    Hallo @news, das ist der entscheidende Punkt. Die ST4000LM024 nutzt SMR (Shingled Magnetic Recording). @jan-t: Solltest du ZFS (oder RAID) unter Proxmox nutzen wollen, ist diese Platte absolut ungeeignet. SMR führt bei ZFS-Schreibvorgängen (Resilvering, Scrubbing) zu massiven...
  14. A

    LizardFS anyone?

    ...for node-provisioning, because it's more flexible and easier to administer remotely than running on bare-metal. Ceph ran so slowly on my DM-SMR drives that I switched, immediately, to LizardFS and now SaunaFS. I've been running the fio-cdm benchmark to 'tune' SaunaFS on my COTS hardware, but...
  15. A

    LizardFS anyone?

    I'm running SaunaFS on a 3-node PVE cluster plus a PBS server, with 4@8TB Seagate Barracuda DM-SMR SATA drives in each one: I tried Ceph and performance was terrible. Reading around the issue, I now understand that Ceph works best with SSD's. I had similar experience running Ceph on a Beowulf...
  16. news

    HDD Empfehlung

    Ok, ich habe für mich die Frage ob CMR oder SMR als Speicherverfahren verwendet wird, hier gefunden: # https://geizhals.de/seagate-barracuda-compute-4tb-st4000lm024-a1521938.html # https://www.tomshardware.com/news/seagate-barracuda-firecuda-hdd-sshd,32860.html
  17. W

    write_date upload error: timed out

    Looks like a destination disk problem or maybe using a smr drive ?
  18. news

    ZFS Storage Inactive Since Reboot

    ...for WD43PURZ: https://www.westerndigital.com/products/internal-drives/wd-purple-sata-hdd?sku=WD43PURZ This drives has bei CMR Storrage Type not SMR! thats good. In Germany i got WD Red 4 TB, the bad one with SMR Storrage Type, they come direct from WD and died after my first boot only! The...
  19. leesteken

    A lot of time restauring VM backups

    ...it's between progress 100% and total bytes. Sounds like half of the data is still in memory if that takes as long as getting to a 100%. Note that the percentage is about reads and not writes. What make and model is the destination drive? Is it a SSD with QLC flash memory or is it a SMR HDD...