Imsrestore of a User Takes a Very Long Time to Complete
(Doc ID 1457616.1)
Last updated on DECEMBER 05, 2019
Applies to:Oracle Communications Messaging Server - Version 7.0.5 and later
Information in this document applies to any platform.
Imsbackup for a certain mail user ( approx. 2.3GB, 64K mails across many folders) takes about 8 minutes, while doing a restore on a T4-2 with zfs and separate zpools for messages and indices currently takes 80 minutes to complete.
As we are moving users from an old system to a new one, it will take months to move all users over.
When running the DTrace script - procsystime, we see the following interesting timing being reported :
Of the 17 minutes runtime, 16.5 minutes went to fdsync.
The kernel and ZFS patch level are on this Solaris 10, Update 10 :
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