Re: [Veritas-bu] Veritas-bu Digest, please top urgent

Well,

Read this technote. http://www.symantec.com/business/support/index?page=content&id=TECH18422&actp=search&viewlocale=en_US&searchid=1292670414185

Use 65536 for size_data_buffres . you may have problems with bigger numbers

Use 64 for number_data_buffers.

Do not mess with network buffers yet. Network is not your problem.

And something that I forget. Check if RSM service (remote storage management) IS DISABLED. Not manual, DISABLED.

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of nizar motasim
Sent: Saturday, December 18, 2010 12:42 PM
To: smpt1 AT peppas DOT gr; jpiszcz AT lucidpixels DOT com
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Veritas-bu Digest, please top urgent

Dear Thanks for your reply

see I think after replaced the driver no pproblems now with Librar and tape drives .agree with you maybe it's network problem or mabye come wrong confiuration in my NBU 6.5 .
I need your help to configured :
NUMBER_DATA_BUFFERS - SIZE_DATA_BUFFERS:IZE NET_BUET_BUFFER_SZ Buffer_suffer_size

I have LOT4 drive and 1.6Tb tapes windows 2003 OS (NBU server and Media server on the same server device ) and using LAN .
which correct buffer to used and How ?

Thanks .

From: smpt1 AT peppas DOT gr
To: nizar17_m AT hotmail DOT com; jpiszcz AT lucidpixels DOT com
CC: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Veritas-bu Digest, please top urgent
Date: Sat, 18 Dec 2010 12:36:21 +0200

First of all, try to verify your backup.

1.14 MB/sec is a very slow speed for exchange backup.

If your exchange is not a media server try to do a test backup of the media server. Check the speed of this backup. If it is slow then, you may have problems with the tape connectivity (drivers, cables, HBAs, terminators, fiber cables…)

If the test backup is fast, then you may have problems at your network.

Open the bpbkar log at the exchange server and raise the verbosity to 5. Also open the bptm log at the media server.

After one exchange backup examine the bpbkar log for buffer entries. If the backup waits to fill the buffers, then you have problem with the exchange system. If it waits for empty buffers you have problem with the network.

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of nizar motasim
Sent: Saturday, December 18, 2010 10:33 AM
To: jpiszcz AT lucidpixels DOT com
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Veritas-bu Digest, please top urgent

Dear ,
Thanks for help ,and sorry for this reply too late ,that because I requested new drives and I recieved already and connected to Library .I did the test that to backup about 4Gb data from inside the server itself ,It took around 1hour see the below report
I think it's also very slow but completed wihtout error .
I have exchange database it's over 500 Gb what do you think in my case .Please your advice is high appreciated
am ready to provide you with any details to reach our goal .
TQ

12/18/2010 9:41:55 AM - connecting
12/18/2010 9:41:55 AM - connected; connect time: 00:00:00
12/18/2010 9:41:57 AM - mounting 2939LT
12/18/2010 9:42:40 AM - mounted; mount time: 00:00:43
12/18/2010 9:42:46 AM - positioning 2939LT to file 26
12/18/2010 9:44:36 AM - positioned 2939LT; position time: 00:01:50
12/18/2010 9:44:36 AM - begin writing
12/18/2010 10:49:19 AM - end writing; write time: 01:04:43
the requested operation was successfully completed(0)

> Date: Fri, 10 Dec 2010 18:25:23 -0500
> From: jpiszcz AT lucidpixels DOT com
> To: nizar17_m AT hotmail DOT com
> CC: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] Veritas-bu Digest, please top urgent
>
> Hi,
>
> Looks like a bad drive, check your tape drive that is trying to mount to
> and also the FSC errors on the tape robot.
>
> Justin.
>
> On Thu, 9 Dec 2010, nizar motasim wrote:
>
> >
> > Dear All
> > I have NBU 6.5.4 installed on server 2003 to backup ADs server and exchange mlast two weeks became very slow and some times not comleted specialy Exchange server stopped totaly ( data over 600Gb) and give this errors: I need your advice please .
> >
> >
> >
> > 12/9/2010 7:44:16 PM - requesting resource ktm-backup1-hcart-robot-tld-0
> > 12/9/2010 7:44:16 PM - requesting resource ktm-backup1.NBU_CLIENT.MAXJOBS.ktm-mail
> > 12/9/2010 7:44:16 PM - requesting resource ktm-backup1.NBU_POLICY.MAXJOBS.Exchange
> > 12/9/2010 7:44:16 PM - granted resource ktm-backup1.NBU_CLIENT.MAXJOBS.ktm-mail
> > 12/9/2010 7:44:16 PM - granted resource ktm-backup1.NBU_POLICY.MAXJOBS.Exchange
> > 12/9/2010 7:44:16 PM - granted resource 2932LT
> > 12/9/2010 7:44:16 PM - granted resource HP.ULTRIUM4-SCSI.000
> > 12/9/2010 7:44:16 PM - granted resource ktm-backup1-hcart-robot-tld-0
> > 12/9/2010 7:44:17 PM - estimated 0 kbytes needed
> > 12/9/2010 7:44:17 PM - started process bpbrm (5576)
> > 12/9/2010 7:44:18 PM - connecting
> > 12/9/2010 7:44:20 PM - connected; connect time: 00:00:02
> > 12/9/2010 7:49:06 PM - mounting 2932LT
> > 12/9/2010 7:49:11 PM - Error bptm(pid=5808) error requesting media, TpErrno = Robot operation failed
> > 12/9/2010 7:49:11 PM - Warning bptm(pid=5808) media id 2932LT load operation reported an error
> > 12/9/2010 7:49:11 PM - current media 2932LT complete, requesting next resource Any
> > 12/9/2010 7:49:19 PM - granted resource 2974LT
> > 12/9/2010 7:49:19 PM - granted resource HP.ULTRIUM4-SCSI.000
> > 12/9/2010 7:49:19 PM - granted resource ktm-backup1-hcart-robot-tld-0
> > 12/9/2010 7:49:20 PM - mounting 2974LT
> > 12/9/2010 7:50:04 PM - mounted; mount time: 00:00:44
> > 12/9/2010 7:50:08 PM - positioning 2974LT to file 1
> > 12/9/2010 7:50:13 PM - positioned 2974LT; position time: 00:00:05
> > 12/9/2010 7:50:13 PM - begin writing
> > 12/9/2010 9:03:16 PM - Error bptm(pid=5808) cannot write image to media id 2974LT, drive index 0, The request could not be performed because of an I/O device error.
> > 12/9/2010 9:03:23 PM - end writing; write time: 01:13:10
> > media write error(84)

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