Networker

Re: [Networker] one of our IBM LTO1 too slow

2006-06-08 10:40:57
Subject: Re: [Networker] one of our IBM LTO1 too slow
From: Albert Eddie Contractor AFRPA CIO/IT <Eddie.Albert AT AFRPA.PENTAGON.AF DOT MIL>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 8 Jun 2006 10:46:39 -0400
The only thing I have noticed is, transfer rate on LARGE files is GREAT.
But when the server runs into a lot of small files, it takes longer and
throughput goes down waiting for the device. /ALE

> -----Original Message-----
> From: Legato NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Olaf Zaplinski
> Sent: Thursday, June 08, 2006 10:23 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] one of our IBM LTO1 too slow
> 
> Hi,
> 
> we have 4 IBM LTO1 drives here. One of them writes at a very 
> slow rate when staging from disk to tape. It starts with the 
> usual speed, about 15-20 MB/s, but soon drops down to 550 
> kB/s. Do you know what the problem might be? I already took 
> the drive offline and tested it with a blank tape, but there 
> were no errors. It is not media related, those tapes are 
> being written at the usual speed in other drives.
> 
> Olaf
> 
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