Re: [Networker] SLOW LTO-drives
2002-09-13 11:30:25
Hi,
I don't know about OnTap 6.2R2 but with earlier versions the maximum
bandwith per stream through NDMP was about 12MB/s.
Had this problem once. To overcome this limit I simply split the
filers savesets (there were two of them) into two client resources and
put those into a dedicated NSR group. Each stream now had roughly 12MB/s
adding up to 24MB/s.
Strange but thats how it worked.
christian
> To all,
>
> We are running networker 6.1.1 with NDMP and are backing up a NetApp
> filer (F840 with ONTAP 6.2R2) to two LTO-drives which are attached to
> the filer.
>
> Backups are going oke but the speed of the LTO-drives is very poor. We
> only get an averedge of 12 MB/sec (compressed to nrst?a) which should
> be about 25MB/sec.
>
> Has anybody seen this poor performance and if so, have you solved it?
> Do you have any tips to speed up the backup?
>
> TIA.
>
> Regards,
>
> Tonny Verberk.
> NCR
> Tel Nr : (+31 40 27)32071
> E-mail : Tonny.Verberk AT ncr DOT com
> ------------------------------
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