Re: NFS digest, Vol 1 #2299 - 6 msgs

Re: NFS digest, Vol 1 #2299 - 6 msgs

[M. Todd Smith]

from: Chris Penney <cpenney@gmail.com>

>That seems slow for LSI disks.  I use LSI disk (STK rebrand) and have
>one HBA connected to controller A and the other HBA to controller B.=20
>I then have two 1TB luns primary on A and B (so a total of 4 TB).  I
>get ~300MB/s.  I'm wondering if you are striping across controllers
>and what file system you use (I use JFS).
>
>How are you chaining the luns into one volume?  I use the device
>mapper (4 multipath devices =3D> 1 linear).
>  
>
Chris,

We are using XFS, the spare and parity drives are kept in a seperate 
jbod case w/ seperate controller, so it would seem we are indeed 
striping across controllers (we've had one drive fail so we are using a 
spare in that seperate case now).  We are using two luns and mount them 
seperately as we had some problems with XFS and LVM recognizing volumes 
greater than 2Tb.  Again I didn't set the SAN up .. I'm going to do more 
research in this direction though.

Cheers
Todd

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