Hello Robert, Tuesday, February 6, 2007, 12:55:19 PM, you wrote:
RM> Hello zfs-discuss, RM> It looks like when zfs issues write cache flush commands se3510 RM> actually honors it. I do not have right now spare se3510 to be 100% RM> sure but comparing nfs/zfs server with se3510 to another nfs/ufs RM> server with se3510 with "Periodic Cache Flush Time" set to disable RM> or so longer time I can see that cache utilization on nfs/ufs stays RM> about 48% while on nfs/zfs it's hardly reaches 20% and every few RM> seconds goes down to 0 (I guess every txg_time). RM> nfs/zfs also has worse performance than nfs/ufs. RM> Does anybody know how to tell se3510 not to honor write cache flush RM> commands? Is there mdb hack to disable issuing write cache flushes by zfs? It could be better than disabling it on the array itself as less scsi commands would be send. -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
