I've seen this same symptom Debi. I only have two or three tapes in the copy
dir pool but when I tried to reclaim one it took all day to finish. Maybe it
has something to do with the number of files on the tape??? I know it's not
a whole lot of data in megabytes...
Mark
-----Original Message-----
From: Debi Randolph [mailto:Debra.Randolph AT FBOL DOT COM]
Sent: Tuesday, August 05, 2003 1:44 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Reclamation of Copy Dirs
Yes, it's forever and 2 days with no tape drive contention.
We're using 3590E1A's, but moving to LTO in the next 30 to 60 days.
I only have 12 volumes utilized in the Copy Dirs pool. So we've turned
over the specific volumes a number of times. So I don't think it's any
one volume that could be causing the problem, as far as read/write errors
go.
How does reclamation on this pool work? When you reclaim Copy Dirs, it
only uses one tape drive, just an output volume, no input volume. All the
other storage pools use two drives, an input volume and an output volume.
So is it going back to the client to re-write the data to a new tape?
Thanks,
Deb Randolph
Richard Sims
<rbs AT BU DOT EDU> To:
ADSM-L AT VM.MARIST DOT EDU
Sent by: "ADSM: cc:
Dist Stor Subject: Re: Reclaimation of
Copy Dirs
Manager"
<[email protected]
.EDU>
08/05/2003 11:17
AM
Please respond to
"ADSM: Dist Stor
Manager"
>Is it supposed to take forever and 2 days to reclaim my Copy Dirs pool?
Not for the price of the product...
You haven't told us if you are checking for tape drive contention,
as in drives busy with higher priority tasks.
If no contention, you may have some "difficult" tapes, consuming costly
retries in reading or writing. To try to isolate the problem, you can
do Move Data on indicative tapes and follow the progress, watching for
particular points where things crawl, and go from there, as in examining
I/O load or paging on your server.
We also don't know your tape technology type: as you may have seen from
historic posting, start-stop on some drives is painful.
Richard Sims, BU
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