Today I attempted to upgrade to S10_U2 and migrate some mirrored UFS SVM
partitions to ZFS.
I used Live Upgrade to migrate from U1 to U2 and that went without a
hitch on my SunBlade 2000. And the initial conversion of one side of the
UFS mirrors to a ZFS pool and subsequent data migration went fine.
However, when I attempted to attach the second side mirrors as a mirror
of the ZFS pool, all hell broke loose.
The system more or less became unresponsive after a few minutes. It
appeared that ZFS had taken all available memory because I saw tons of
errors on the console about failed memory allocations.
Any thoughts/suggestions?
The data I migrated consisted of about 80GB. Here's the general flow of
what I did:
1. break the SVM mirrors
metadetach d5 d51
metadetach d6 d61
metadetach d7 d71
2. remove the SVM mirrors
metaclear d51
metaclear d61
metaclear d71
3. combine the partitions with format. They were contiguous
partitions on s4, s5 & s6 of the disk, I just made a single
partition on s4 and cleared s5 & s6.
4. create the pool
zpool create storage cXtXdXs4
5. create three filesystems
zfs create storage/app
zfs create storage/work
zfs create storage/extra
6. migrate the data
cd /app; find . -depth -print | cpio -pdmv /storage/app
cd /work; find . -depth -print | cpio -pdmv /storage/work
cd /extra; find . -depth -print | cpio -pdmv /storage/extra
7. remove the other SVM mirrors
umount /app; metaclear d5 d50
umount /work; metaclear d6 d60
umount /extra; metaclear d7 d70
8. combine the partitions with format. They were contiguous
partitions on s4, s5 & s6 of the disk, I just made a single
partition on s4 and cleared s5 & s6.
9. attach the partition to the pool as a mirror
zpool attach storage cXtXdXs4 cYtYdYs4
A few minutes after issuing the command the system became unresponsive
as described above. I could reboot the system and it would boot up
enough for me to look at the pool status with 'zfs status' at least for
a little while (it appears that the resilver starts every time I reboot)
I left the system running in hopes that it would complete resilvering
over night, otherwise I will probably have to attempt to detach the mirror.
I didn't see any posts with similar problems, but did find at least a
couple of similar memory consumption issues.
Help!
--joe
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