Why does adding a zvol as a swap device take so much longer than adding a lun?
(Doc ID 1563853.1)
Last updated on JULY 07, 2023
Applies to:Solaris Operating System - Version 10 8/11 U10 and later
Information in this document applies to any platform.
When running a Solaris 10 system patched at or newer than 147440-05 (SPARC) and 147441-05 (x86), adding swap based on a zvol can take a substantial amount of time (e.g. 900gb of swap can take 20-30 minutes), while adding swap based on a lun of a similar size is almost instantaneous.
The issue does not occur if the patch level is lower than 147440-04 (SPARC) or 147441-04 (x86). The -04 versions of this patch would also exhibit the problems but they were withdrawn.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document