[8589] in Info-AFS_Redistribution
RE: Really slow vos dumps to local disks
daemon@ATHENA.MIT.EDU (Touretsky, Gregory)
Sun Mar 18 03:06:53 2001
Message-ID: <CB46341FECBDD111832600A0C926615A08450058@hasmsx31.iil.intel.com>
From: "Touretsky, Gregory" <gregory.touretsky@intel.com>
To: Nathan Neulinger <nneul@umr.edu>,
"Touretsky, Gregory"
<gregory.touretsky@intel.com>
Cc: Info-AFS@transarc.com
Date: Sat, 17 Mar 2001 23:57:46 -0800
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We do AFS volume-based backup directly to ADSM tapes (ADSM 3.1.2 now).
Average rate is 4.1 MB/sec, Max rate 7.4 MB/sec (backing up volumes with
large files).
Tape limit: 10MB/sec
Network: gigabit backbone between AFS file servers and backup servers.
AFS data kept on EMC Symmetrix.
Gregory Touretsky
IDC Computing / Systems Engineering Group
Unix Server Platforms
gregory.touretsky@intel.com
> (+) 972-4-865-6377, Fax: 04-865-5999
iNET: 465-6377, M/S: IDC-1B
-----Original Message-----
From: Nathan Neulinger [mailto:nneul@umr.edu]
Sent: Friday, March 16, 2001 1:46 AM
To: Touretsky, Gregory
Cc: Info-AFS@transarc.com
Subject: Re: Really slow vos dumps to local disks
What is your local disk capable of?
-- Nathan
"Touretsky, Gregory" wrote:
>
> We get 7-8 Mb/sec backing up AFS data with ADSM over gigabit network...
>
> Gregory Touretsky
> IDC Computing / Systems Engineering Group
> Unix Server Platforms
> gregory.touretsky@intel.com
> > (+) 972-4-865-6377, Fax: 04-865-5999
> iNET: 465-6377, M/S: IDC-1B
>
> -----Original Message-----
> From: Ken Hornstein [mailto:kenh@cmf.nrl.navy.mil]
> Sent: Thursday, March 15, 2001 11:04 PM
> To: Info-AFS@transarc.com
> Subject: Re: Really slow vos dumps to local disks
>
> >The slowdown I've seen is on the server itself, as well as remote clients
-
> >in fact local/remote doesn't seem to be making much difference.
>
> I calculate his data rate at about 3.7MB/sec, which is in-line with what
> everyone else has been seeing.
>
> --Ke
--
------------------------------------------------------------
Nathan Neulinger EMail: nneul@umr.edu
University of Missouri - Rolla Phone: (573) 341-4841
CIS - Systems Programming Fax: (573) 341-4216
