here are a quick backup with nexenta, zfs, zfs compression=on,
atime=off, backuppc compression=OFF,raidz,1GB ram dedicated, 2CPU
dedicate(3Ghz)
note that this is vmware BUT the numbers arent too bad.
This is tar over nfs, rsync wont work because of the file_rsyncp_perl
version 0.52 too low of version number.
2008-03-22 22:00:27 User backuppc requested backup of test
<http://192.168.1.111/backuppc/index.cgi?host=test> (test
<http://192.168.1.111/backuppc/index.cgi?host=test>)
2008-03-22 22:00:28 Backup failed on test
<http://192.168.1.111/backuppc/index.cgi?host=test> (File::RsyncP module
version (0.52) too old: need 0.68)
Backup# Type Filled Level Start Date Duration/mins Age/days
Server Backup Path
0
<http://192.168.1.111/backuppc/index.cgi?action=browse&host=localhost&num=0>
full yes 0 3/22 21:45 6.4 0.0
/var/lib/backuppc/pc/localhost/0
File Size/Count Reuse Summary
Existing files are those already in the pool; new files are those
added to the pool. Empty files and SMB errors aren't counted in the
reuse and new counts.
Totals Existing Files New Files
Backup# Type #Files Size/MB MB/sec #Files Size/MB
#Files
Size/MB
0
<http://192.168.1.111/backuppc/index.cgi?action=browse&host=localhost&num=0>
full 36285 562.9 1.46 12210 175.5 29593 388.4
Compression Summary
Compression performance for files already in the pool and newly
compressed files.
Existing Files New Files
Backup# Type Comp Level Size/MB Comp/MB Comp
Size/MB
Comp/MB Comp
0
<http://192.168.1.111/backuppc/index.cgi?action=browse&host=localhost&num=0>
full off 175.5 175.5 0.0% 388.4 388.4 -0.0%
Of course the Comp percent is not being shown, here it is from a 'zfs
get compressratio data/backuppc'
NAME PROPERTY VALUE SOURCE
data/backuppc compressratio 1.60x -
1.46MB/sec isn't too bad, especially in vmware. I actually think that
vmware's terrible networking caused more of a slowdown than the mediocre
IO. It is very easy to watch ZFS buffer out the IO slowness, I could
see data being written in bursts which really helped bypass the low IO
in vmware.
I can't run this on real hardware at the moment, my SATA
controller(intel P35 chipset) isn't supported on the opensolaris
kernel. I will try to get my hands on an IDE based system.
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