AW: LAN-free using GPFS
Yes, No Problem. Von: ADSM: Dist Stor Manager [ads...@vm.marist.edu]quot; im Auftrag von quot;Mehdi Salehi [ezzo...@googlemail.com] Gesendet: Sonntag, 18. April 2010 11:23 An: ADSM-L@vm.marist.edu Betreff: LAN-free using GPFS Hi all, I see virtually nothing about LAN-free setup with GPFS in TSM manuals. Is it still supported? Thanks.
disk question
Hi, Are there any performance benefits in creating two or more LUN´s in the same RAID group for one RHEL 5, TSM 5.5 database, instead of only creating one LUN. If yes, why? Example: IBM Midrange System Storage Implementation and Best Practices Guide sg246363, see chapter 7.4/TSM database. //Henrik --- The information contained in this message may be CONFIDENTIAL and is intended for the addressee only. Any unauthorised use, dissemination of the information or copying of this message is prohibited. If you are not the addressee, please notify the sender immediately by return e-mail and delete this message. Thank you
Re: ANS2831E snapdiff error
Apparently this was all just Windows being retarded. A reboot of the system made it work. - Cameron Hanover chano...@umich.edu Our integrity sells for so little, but it is all we really have. It is the very last inch of us, but within that inch, we are free. --Valerie (V for Vendetta) On Apr 19, 2010, at 3:02 PM, c.hanover wrote: I'm having trouble running a snapdiff backup from a Windows 2008 TSM client. TSM client 6.1.3.3 Windows 2008 Server Standard SP2 64 bit I've been able to do a snapdiff backup of the same NAS volume from two other Windows machines, I believe both running Windows 2003. I've already done the 'set password type=filer', now when I try to do 'incr -snapdiff \\server\share', I get back: Incremental by snapshot difference of volume '\\server\share' ANS2831E Incremental by snapshot difference cannot be performed on '\\server\share' as it is not a NAS NFS or CIFS volume. ANS2832E Incremental by snapshot difference failed for \\server\share. Please see error log for details. ANS5283E The operation was unsuccessful. If I try `incr -snapdiff z:`, it comes back with ANS1076E and AND1134E (drive can't be found, invalid drive spec). The TSM GUI doesn't show the mapped drive under network drives, either. Any thoughts what the problem might be? - Cameron Hanover chano...@umich.edu Our integrity sells for so little, but it is all we really have. It is the very last inch of us, but within that inch, we are free. --Valerie (V for Vendetta)
Re: disk question
I can tell you my understanding - right or wrong! Operating systems keep lots of I/O queues . . at least these: - a queue for each HBA. - a queue for each LUN. By spreading your db across multiple luns and hba's, you can get more parallelism - assuming your application can make use of the parallelism. This is why TSM also should have it's database defined using multiple volumes. So you get multiple db vols across multiple lun's across multiple HBA's. Will it help?It all depeneds . . . The best thing I have ever read about this topic is the following. It doesn't specifically address your question, but it goes into a deep dive about queuing. http://virtualgeek.typepad.com/virtual_geek/2009/06/vmware-io-queues-micro-bursting-and-multipathing.html Rick Henrik Vahlstedt s...@statoil.com To Sent by: ADSM: ADSM-L@VM.MARIST.EDU Dist Stor cc Manager ads...@vm.marist Subject .EDU disk question 04/21/2010 11:11 AM Please respond to ADSM: Dist Stor Manager ads...@vm.marist .EDU Hi, Are there any performance benefits in creating two or more LUN´s in the same RAID group for one RHEL 5, TSM 5.5 database, instead of only creating one LUN. If yes, why? Example: IBM Midrange System Storage Implementation and Best Practices Guide sg246363, see chapter 7.4/TSM database. //Henrik --- The information contained in this message may be CONFIDENTIAL and is intended for the addressee only. Any unauthorised use, dissemination of the information or copying of this message is prohibited. If you are not the addressee, please notify the sender immediately by return e-mail and delete this message. Thank you
Deduplication Status
I have been looking through the commands and outputs of commands, trying to find something to tell me how much deduplication has occurred. Is there one there I am missing? Thanks. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless.
Re: Deduplication Status
Hi Andy, Are you doing server- or client-side deduplication? What are the versions of your TSM Client and Server? Regards, Mark L. Yakushev From: Andrew Carlson naclos...@gmail.com To: ADSM-L@vm.marist.edu Date: 04/21/2010 12:36 PM Subject:[ADSM-L] Deduplication Status I have been looking through the commands and outputs of commands, trying to find something to tell me how much deduplication has occurred. Is there one there I am missing? Thanks. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless.
Linux inotify to identify changed stuff?
I've got a few clients with rather large filesystems: ~6K dirs, ~2.2M
files, 10 filesystems to the client.
Walking these FS trees, especially given the size of the directories,
can be very slow. I'm noodling with methods that would let me take
some shortcuts, for daily purposes, and then do a normal incremental
less frequently.
Linux has this neat feature 'inotify'. It lets you erect a low-level
FS monitor on a directory or file, and get warnings when something
happens to it.
I started to write my own direct inotify interface, but then found
inotify-tools, which is capable of dumping stuff out with substantial
flexibility.
My current state of experimentation is using an inotifywait
invocation, and the following PERL code thus:
# inotifywait -c -m -r [path] | ./timesplit
which yields a series of timestamped changes files. I'll be doing a
periodical
dsmc incr -filelist=/some/path/yadda/timestamped-change-file
in the next phase.
I'm wondering if anyone else is doing something similar, or is
interested in comparing notes.
- Allen S. Rout
-
#!/usr/bin/perl -- -*-Perl-*-
use warnings;
use strict;
use Getopt::Long;
use Time::CTime;
use FileHandle;
my $outdir = ./out;
my $prefix=changes;
my $formatstring= %Y-%m-%d--%H-%M;
my $outfile = newfile() ;
my $last = time;
my $delay = 60;
# Seconds. If this delay doesn't dependably
# result in a change in the formatted time,
# you'll overwrite stuff.
while ()
{
my $now = time;
if ( ($now - $last) $delay )
{
$outfile-close();
$outfile = newfile();
$last = $now;
}
my $l = procline($_);
defined ($l) print $outfile $l;
print STDERR .;
}
sub newfile
{
$last = time;
my $fname = $outdir/$prefix-.strftime($formatstring,localtime($last));
print \n.$fname.\n;
my $fh = new FileHandle($fname);
return $fh;
}
sub procline
{
my @fields;
undef @fields;
push(@fields, defined($1) ? $1:$3)
while m/([^\\]*(\\.[^\\]*)*)|([^,]+)/g; # \\]
my ($path,$op,$fname) = @fields;
# return undef if ($fname =~ /cyrus.(header|index|cache)/);
return $path$fname;
}
-
Re: Deduplication Status
Server side dedup, Server V6.2, client V6.2. On Wed, Apr 21, 2010 at 2:39 PM, Mark Yakushev bar...@us.ibm.com wrote: Hi Andy, Are you doing server- or client-side deduplication? What are the versions of your TSM Client and Server? Regards, Mark L. Yakushev From: Andrew Carlson naclos...@gmail.com To: ADSM-L@vm.marist.edu Date: 04/21/2010 12:36 PM Subject: [ADSM-L] Deduplication Status I have been looking through the commands and outputs of commands, trying to find something to tell me how much deduplication has occurred. Is there one there I am missing? Thanks. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless.
Re: Deduplication Status
Hi Andy, there are 2 sources for this information. A column in the stgpools table has the MB saved - tsm: select cast(stgpool_name as char(20)) as Name, - cast(space_saved_mb / 1024.0 / 1024.0 as decimal(6,2)) as T Saved from stgpools Name T Saved - - BKP_0 BKP_1A0.00 BKP_1B0.00 BKP_2 24.38 Or 'q stg f=d' will show it - tsm: q stg bkp_2 f=d Storage Pool Name: BKP_2 Storage Pool Type: Primary Device Class Name: VT01_50GB Estimated Capacity: 50,775 G ... ... ... Deduplicate Data?: Yes Processes For Identifying Duplicates: 0 Duplicate Data Not Stored: 24,972 G (56%) Hope this helps, Bill Colwell Draper Lab -Original Message- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Andrew Carlson Sent: Wednesday, April 21, 2010 4:13 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: Deduplication Status Server side dedup, Server V6.2, client V6.2. On Wed, Apr 21, 2010 at 2:39 PM, Mark Yakushev bar...@us.ibm.com wrote: Hi Andy, Are you doing server- or client-side deduplication? What are the versions of your TSM Client and Server? Regards, Mark L. Yakushev From: Andrew Carlson naclos...@gmail.com To: ADSM-L@vm.marist.edu Date: 04/21/2010 12:36 PM Subject: [ADSM-L] Deduplication Status I have been looking through the commands and outputs of commands, trying to find something to tell me how much deduplication has occurred. Is there one there I am missing? Thanks. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless.
Re: Deduplication Status
Thanks for all the answers. I finally figured out why I wasn't seeing anything . . . it helps to read everything . . . I didn't realize the the duplicate data is not released until reclamation processing. Thanks all. On Wed, Apr 21, 2010 at 4:40 PM, Colwell, William F. bcolw...@draper.com wrote: Hi Andy, there are 2 sources for this information. A column in the stgpools table has the MB saved - tsm: select cast(stgpool_name as char(20)) as Name, - cast(space_saved_mb / 1024.0 / 1024.0 as decimal(6,2)) as T Saved from stgpools Name T Saved - - BKP_0 BKP_1A 0.00 BKP_1B 0.00 BKP_2 24.38 Or 'q stg f=d' will show it - tsm: q stg bkp_2 f=d Storage Pool Name: BKP_2 Storage Pool Type: Primary Device Class Name: VT01_50GB Estimated Capacity: 50,775 G ... ... ... Deduplicate Data?: Yes Processes For Identifying Duplicates: 0 Duplicate Data Not Stored: 24,972 G (56%) Hope this helps, Bill Colwell Draper Lab -Original Message- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Andrew Carlson Sent: Wednesday, April 21, 2010 4:13 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: Deduplication Status Server side dedup, Server V6.2, client V6.2. On Wed, Apr 21, 2010 at 2:39 PM, Mark Yakushev bar...@us.ibm.com wrote: Hi Andy, Are you doing server- or client-side deduplication? What are the versions of your TSM Client and Server? Regards, Mark L. Yakushev From: Andrew Carlson naclos...@gmail.com To: ADSM-L@vm.marist.edu Date: 04/21/2010 12:36 PM Subject: [ADSM-L] Deduplication Status I have been looking through the commands and outputs of commands, trying to find something to tell me how much deduplication has occurred. Is there one there I am missing? Thanks. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless. -- Andy Carlson --- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless.
