similar to: how to relocate a disk

hi all, i''ve been using a SAN LUN as the sole member of a zpool with one additional zfs filesystem. this is a flat SAN fabric, so this LUN was available to other systems on the fabric, and one of them came up with "wrong magic number" for several drives, and, as best i can tell, the vtoc for my zpool LUN was over-written on that host via format labeling to correct the error.

Hi All, ZPOOL / ZFS commands writes EFI label on a device if we create ZPOOL/ZFS fs on it. Is it true ? I formatted a device with VTOC lable and I created a ZFS file system on it. Now which label the ZFS device has ? is it old VTOC or EFI ? After creating the ZFS file system on a VTOC labeled disk, I am seeing the following warning messages. Feb 3 07:47:00 scoobyb

for s10u2, documentation recommends 3 to 9 devices in raidz. what is the basis for this recommendation? i assume it is performance and not failure resilience, but i am just guessing... [i know, recommendation was intended for people who know their raid cold, so it needed no further explanation] thanks... oz -- ozan s. yigit | oz at somanetworks.com | 416 977 1414 x 1540 I have a hard time

What is a use case of setting a reservation on the base pool object? Say I have a pool of 3 100GB drives dynamic striped (pool size of 300GB), and I set the reservation to 200GB. I don''t see any commands that let me ever reduce a pool''s size, so how is the 200GB reservation used? Related question: is there a plan in the future to allow me to replace the 3 100GB drives with 2

Hello zfs-discuss, If you do ''zpool create -f test A B C spare D E'' and D or E contains UFS filesystem then despite of -f zpool command will complain that there is UFS file system on D. workaround: create a test pool with -f on D and E, destroy it and that create first pool with D and E as hotspares. I''ve tested it on s10u3 + patches - can someone confirm

Say I''m firing off an at(1) or cron(1) job to do scrubs, and say I want to scrub two pools sequentially because they share one device. The first pool, BTW, is a mirror comprising of a smaller disk and a subset of a larger disk. The other pool is the remainder of the larger disk. I see no documentation mentioning how to scrub, then wait-until-completed. I''m happy to be pointed

How can I set up a ZVOL that''s accessible by non-root users, too? The intent is to use sparse ZVOLs as raw disks in virtualization (reducing overhead compared to file-based virtual volumes). Thanks, -mg This message posted from opensolaris.org

Folks, How can I find out zpool id without using zpool import? zpool list and zpool status does not have option as of Solaris 10U5.. Any back door to grab this property will be helpful. Thank you Ajay

Hello zfs-discuss, Just to be sure - if I create ZFS filesystems on snv_39 and then later I would want just to import that pool on S10U2 - can I safely assume it will just work (I mean nothing new to on-disk format was added or changed in last few snv releases which is not going to be in u2)? I want to put right now (I have to do it now) some data on ZFS and later I want to

I need to move data from one zpool to another, lock stock and barrel, Being from linux background my instinct was to use rsync. But then I remembered seeing the `export/import options in man zpool.. And I''ve seen mention of them here too, but didn''t pay attention since I''d noticed no need yet. Now I''m wondering if the export/import sub commands might not be

As mentioned last night, we''ve been reviewing a proposal for hot spare support in ZFS. Below you can find a current draft of the proposed interfaces. This has not yet been submitted for ARC review, but comments are welcome. Note that this does not include any enhanced FMA diagnosis to determine when a device is "faulted". This will come in a follow-on project, of which some

We have a Mirror setup in ZFS that''s 73GB (two internal disks on a sun fire v440). We currently are going to attach this system to an Equallogic Box, and will attach an ISCSCI LUN from the Equallogic box to the v440 of about 200gb. The Equallogic Box is configured as a Hardware Raid 50 (two hot spares for redundancy). My question is what''s the best approach to moving the ZFS

Hello zfs-discuss, Relatively low traffic to the pool but sync takes too long to complete and other operations are also not that fast. Disks are on 3510 array. zil_disable=1. bash-3.00# ptime sync real 1:21.569 user 0.001 sys 0.027 During sync zpool iostat and vmstat look like: f3-1 504G 720G 370 859 995K 10.2M misc 20.6M 52.0G 0 0

Hi, When deploying ZFS in cluster environment it would be nice to be able to have some SSDs as local drives (not on SAN) and when pool switches over to the other node zfs would pick up the node''s local disk drives as L2ARC. To better clarify what I mean lets assume there is a 2-node cluster with 1sx 2540 disk array. Now lets put 4x SSDs in each node (as internal/local drives). Now

Is there an existing RFE for, what I''ll wrongly call, "recursively visable snapshots"? That is, .zfs in directories other than the dataset root. Frankly, I don''t need it available in all directories, although it''d be nice, but I do have a need for making it visiable 1 dir down from the dataset root. The problem is that while ZFS and Zones work smoothly

Hello zfs-discuss, I''m writing a script to do automatically snapshots and destroy old one. I think it would be great to add to zfs destroy another option so only snapshots can be destroyed. Something like: zfs destroy -s SNAPSHOT so if something other than snapshot is provided as an argument zfs destroy wouldn''t actually destroy it. That way it would

We are currently running sun cluster 3.2 on solaris 10u3. We are using ufs/vxvm 4.1 as our shared file systems. However, I would like to migrate to HA-NFS on ZFS. Since there is no conversion process from UFS to ZFS other than copy, I would like to migrate on my own time. To do this I am planning to add a new zpool HAStoragePlus resource to my existing HA-NFS resource group. This way I can migrate

zpool status shows a few checksum errors against 1 device in a raidz1 3 disk array and no read or write errors against that device. The pool marked as degraded. Is there a difference if you clear the errors for the pool before you scrub versus scrubing then clearing the errors? I''m not sure if the clearing errors prior to a scrub will replicate out any bad blocks that were identified as

Hi all. A quick question about the checksum error detection routines in ZFS. Surely ZFS can decide about checksum errors in a redundant environment but what about an non-redundant one? We connected a single RAID5 array to a v440 as a NFS server and while doing backups and the like we see the "zpool status -v" checksum error counters increment once in a while. Nevertheless the

Hello zfs-discuss, I wonder if ZFS will be able to take any advantage of Niagara''s built-in crypto? -- Best regards, Robert Milkowski mailto:rmilkowski at task.gda.pl http://milek.blogspot.com