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. _______________________________________________ zfs-discuss mailing list [EMAIL PROTECTED] http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
