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@backupserver:/backups.
Jed