Jed Reynolds wrote: > 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 Ok, so the DB is residing locally on the local server you are copying onto the nfs mount only during backup?