On April 12, 2007 3:47:06 PM -0600 Bruce Shaw <[EMAIL PROTECTED]> wrote:
Management here is worried about performance under ZFS because they had
a bad experience with Instant Image a number of years ago. When iiamd
was used, server performance was reduced to a crawl. Hence they want
proof in the form of benchmarking that zfs snapshots will not adversely
affect system performance. They suggested creating, snapshotting,
copying and generally messing about with some 1 gb files. The system is
an E450 running snv_52 with a 36 gb boot drive, 142 Gb data drive and
two 9 gb SAN partitions, one on slow disk, one on fast. The 36 gb is
formatted ufs, everything else zfs.
I time mkfile'ing a 1 gb file on ufs and copying it, then did the same
thing on each zfs partition. Then I took snapshots, copied files, more
snapshots, keeping timings all the way. I could find no appreciable
performance hit.
Is this a sufficient, valid test?
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they are
addressed. If you have received this email in error please notify the
system manager. This message contains confidential information and is
intended only for the individual named. If you are not the named
addressee you should not disseminate, distribute or copy this e-mail.
I'm sorry, but I can't answer your questions since I refuse to accept
these terms. As I don't have any idea who the "system manager" is, I
guess I have no one to go to about this problem!
You do realize your confidential email has been gateway'd to the web
and indexed by google and other search engines?
-frank
_______________________________________________
zfs-discuss mailing list
[EMAIL PROTECTED]
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
