Ugo Bellavance wrote: > Jed Reynolds wrote: >> Jed Reynolds wrote: >>> Ugo Bellavance wrote: >>> >>>> >>>> Can you send us the output of vmstat -n 5 5 >>>> when you're doing a backup? >>>> >>> >>> This is with rsync at bwlimit=2500 >>> >> >> This is doing the same transfer with SSH. The load still climbs...and >> then load drops. I think NFS is the issue. >> >> I wonder if my NFS connection settings in client fstabs are unwise? I >> figured with beefy machine and fast networking, I could take >> advantage of large packetsizes. Bad packet sizes? > > > Are you backing up nfs to nfs? From where to where are you doing > backups? The source data is on a ext3 partition, LVM volume, backed by a 15krpm raid 10 volume. Both rsyncs where conducted from the source host (the db server) to the backup server (which hosts nfs). In the nfs backup, I was rsyncing from the db filesystem to an NFS mount, and the ssh backup, I was rsyncing from the db filesystem to sshuser at backupserver:/backups. Jed