Recent content by Linda Kateley

  1. L

    Looking to migrate from Raid 10 to ZFS

    First the 3700 is way overkill for OS. Like them for cache or log. Freenas is tiny and most of it loads into memory so having fast boot device isn't important unless you need fast boot or reboot. Even so the actual load of os is nothing compared to post on most boxes. Second, it depends on...
  2. L

    zpool not degraded, but certain files cause transfers to hang

    So if you think they are sitting in “rusty” block then just copy them, zfs will assign the files new blocks. Also you can replace in place the disks
  3. L

    Disk or HBA passthrough

    Ok gotcha.. hopefully more than one disk :) There are a whole bunch of horror stories around this. I personally have had really good luck. I just make disk cache flushing gets turned off.
  4. L

    Disk or HBA passthrough

    So the reason I don’t like this is because it has none of the benefits of zfs. Pooling, checksums, growth, hybrid. With zfs I want to use the bandwidth of all the disks and use ram to cache stuff. 1 disk 1 workload.. might as well not use zfs or virtualization. Just buy a server and run an os...
  5. L

    Disk or HBA passthrough

    The answer to this question is the same as the answer to most technical questions.. is.. it depends. So zfs is designed to manage the disk by default. It wants to do things like tell the disk occasionally to flush it's cache. Sometimes when you pass through you may run into problems. When I had...
  6. L

    SSDs, ZIL, and L2ARC

    The way to tell if you will benefit from a ZIL device is to run zilstat. It can show you ongoing zil. If you have any activity at all you will benefit from a dedicated device. FreeNAS has zilstat builtin. Run it with a number of second like #zilstat 1
  7. L

    what's your ZFS flavor?

    Actually oracle support is less expensive than alot of the open source derived zfs tools. Most of the ones focused on storage charge per TB.. where oracle charges per socket. There is a point where it is a better deal.
  8. L

    what's your ZFS flavor?

    I run them all. My company does consulting and support around all of them. I like freenas, but the leading edge of it is bleeding. Freenas is stable because of the stability of freebsd. I also like napp-it. Most the time my customers make the choice. If I have my choice I do like oracle...
  9. L

    FreeNAS fully operational ?

    So as someone who has probably seen more the bad ECC pools than most.. Having data at rest is a very rare use case for problems in ECC. When I have seen those, what happens is a page of memory holding high level metadata while being written is inaccurate. It gets written with checksum to both or...
  10. L

    ZFS Design Principles

    The Freenas community is the only place you will hear that.
  11. L

    ZFS Design Principles

    I can't tell you how many times I have heard swags on memory requirements. The only one i know is freenas needs 8GB because the utility needs it, not zfs.
  12. L

    Slightly oddball server build advice

    I was going to say what gea said. You should be able to import that pool. You also can import into a linux distro. Freenas isn't compatible with other zfs distros.
  13. L

    What will happen with ZFS now Solaris is gone?

    Actually it's not emotional attachment, its financial. In my world they charge $17 a computer to recycle. I tried to bring a couple in one time and they wouldn't take them because they "were owned by a company"
  14. L

    What will happen with ZFS now Solaris is gone?

    Oddly enough Blinux I think I still have that hardware in a closet somewhere.. Really hard to get rid of.
  15. L

    What will happen with ZFS now Solaris is gone?

    Oops I was wrong with this.. A ton of people were laid off in June.