Re: [zfs-discuss] Re: simple Raid-Z question

2007-04-07 Thread Erik Trimble
My current understanding is that RAIDZ and RAIDZ2 setups CANNOT be expanded, nor can they converted between. There has been considerable discussion on this point, and I think the consensus is that expansion is a highly desirable feature, but the exact timetable for adding expansion capability

[zfs-discuss] Re: Re: simple Raid-Z question

2007-04-07 Thread Eric Haycraft
You cannot add 1 drive at a time to a raid-z or raid-2z. You need to add the same number of disks that were used per stripe.. So, if you start with 5 disks, you would have to add 5 more in the future to add disk space. There is also a method of swapping each disk one at a time with a larger disk

[zfs-discuss] RAID-Z resilver broken

2007-04-07 Thread Chris Csanady
In a recent message, I detailed the excessive checksum errors that occurred after replacing a disk. It seems that after a resilver completes, it leaves a large number of blocks in the pool which fail to checksum properly. Afterward, it is necessary to scrub the pool in order to correct these err

[zfs-discuss] other panic caused by ZFS

2007-04-07 Thread Gino
Hi All, here is an other kind of kernel panic caused by ZFS that we found. I have dumps if needed. #zpool import pool: zpool8 id: 7382567111495567914 state: ONLINE status: The pool is formatted using an older on-disk version. action: The pool can be imported using its name or numeric identi

[zfs-discuss] misleading zpool state and panic -- nevada b60 x86

2007-04-07 Thread William D. Hathaway
I'm running Nevada build 60 inside VMWare, it is a test rig with no data of value. SunOS b60 5.11 snv_60 i86pc i386 i86pc I wanted to check out the FMA handling of a serious zpool error, so I did the following: 2007-04-07.08:46:31 zpool create tank mirror c0d1 c1d1 2007-04-07.15:21:37 zpool scr

Re: [zfs-discuss] Re: simple Raid-Z question

2007-04-07 Thread Malachi de Ælfweald
I was considering the same thing (but with 250GB drives) and instead decided to start with 5*250GB so that I could do raid-z2 instead thinking that once you add one more drive you'd rather have raidz2 than raidz On 4/7/07, MC <[EMAIL PROTECTED]> wrote: Two conflicting answers to the same questi

[zfs-discuss] Re: simple Raid-Z question

2007-04-07 Thread MC
Two conflicting answers to the same question? I guess we need someone to break the tie :) > Hello, > > I have been reading alot of good things about Raid-z, > but before I jump into it I have one unanswered > question i can't find a clear answer for. > > Is it possible to enlarge the initial R

[zfs-discuss] Unbelievable. an other crashed zpool :(

2007-04-07 Thread Gino
Today we lost an other zpool! Fortunately it was only a backup repository. SERVER144@/# zpool import zpool3 internal error: unexpected error 5 at line 773 of ../common/libzfs_pool.c this zpool was a RAID10 from 4 HDS LUN. trying to import it into snv_60 (recovery mode) doesn't work. gino

[zfs-discuss] zpool import/export checksum error + panic + work-around

2007-04-07 Thread Remko de Vrijer
Hi List, A few days we exported a zpool which caused our system to panic. Ever since we are able to reimport the pool. We are quite sure all data is intact sinse the pool is located on raid 10 and the other pools still work. We copied the entire disk (iscsi) to a file and placed it back on a id