From: Jeff Kennedy (jlkennedy@amcc.com)
Date: Tue Jul 30 2002 - 14:44:28 EDT
I have an E250 running Solaris 7 with 3 DLT7k drives attached. I
noticed recently that the NetBackup 4.5 catalogue backup was running
down into the hundreds of kb with occasional bursts into the 1-2mb
range.
I turned off the NetBackup daemons and tried some straight OS commands;
tar and ufsdump.
tar cf /dev/rmt/3cbn /usr/openv - yielded the same thing I saw with
catlogue backups
tar cf /dev/rmt/3n /usr/openv - yielded better results, up to 4mb/sec
ufsdump 0f /dev/rmt/3cbn - yielded sustained 5mb/sec with bursts to 9mb.
Now, before anyone jumps the gun on the catalogue's now being in binary
format under NetBackup 4.5 (and possibly getting larger with hardware
compression running) /usr/openv/netbackup/db is a seperate mount under
/usr/openv. /usr/openv does not hold the catalogue images in the direct
filesystem, so I'm mostly backing up ascii configs and logs (lots of
logs).
The same battery of tests using / gave the same results.
Does anyone have an idea as to why these backups would start to slog
fairly suddenly? Last week I noticed them running at 6mb/sec and up.
I'm the only one who makes canges on this machine. It was recently
rebooted to clear some NBU daemon issues as well as some new st.conf
configs. The configs are straight from the NBU media manager config
guide.
Thanks.
-- ===================== Jeff Kennedy Unix Administrator AMCC jlkennedy@amcc.com _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers
This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 23:24:40 EDT