I have been using ZFS send and receive for a while and I noticed that when I try to do a send on a zfs file system of about 3 gig plus it took only about 3 minutes max. zfs send application/sample at back > /backup/sample.zfs However when I tried to send a file system that''s about 20 gig, it took almost an hour. I would had expected that since 3 gig took 3 mins, then 20 gig should take 20 mins instead of 60 mins or more. Is there something that I''m doing wrong or could I looks into any logs / enable any logs to find out what is going on. -- This message posted from opensolaris.org
Upgrading to b105 seems to improve zfs send/recv quite a bit. See this thread: http://www.opensolaris.org/jive/message.jspa?messageID=330988 -- Dave Kok Fong Lau wrote:> I have been using ZFS send and receive for a while and I noticed that when I try to do a send on a zfs file system of about 3 gig plus it took only about 3 minutes max. > > zfs send application/sample at back > /backup/sample.zfs > > However when I tried to send a file system that''s about 20 gig, it took almost an hour. I would had expected that since 3 gig took 3 mins, then 20 gig should take 20 mins instead of 60 mins or more. > > Is there something that I''m doing wrong or could I looks into any logs / enable any logs to find out what is going on.
Kok Fong Lau wrote:> I have been using ZFS send and receive for a while and I noticed that when I try to do a send on a zfs file system of about 3 gig plus it took only about 3 minutes max. > > zfs send application/sample at back > /backup/sample.zfs > > However when I tried to send a file system that''s about 20 gig, it took almost an hour. I would had expected that since 3 gig took 3 mins, then 20 gig should take 20 mins instead of 60 mins or more. > > Is there something that I''m doing wrong or could I looks into any logs / enable any logs to find out what is going on. >What''s the nature of the data in the two filesystems? -- Ian.
Thanks. I''ll try to upgrade to b105. That''ll only happen probably in a few months time. The zfs files contains Oracle and oracle tablespace files. When I did the send command Oracle was shutdown. I just did a receive as well recently and the 20gig file only took about 15 plus mins to load as oppose to 1 hour plus to send. I''m still baffled, but I''ll try b105 (maybe in mid May) and come back to this forum again. Thanks -- This message posted from opensolaris.org