[Networker] Networker 7.4.4 Power Edition
2010-03-12 17:24:41
anacreo wrote:
> So from my BB...
>
> 20 drives X 120MB/s = 2400MB/s
>
> 4000mbps/8 = 500MB/s
>
> 2400MB/s / 500MB/s = 4.8 ports and I would safely hedge that by 30% at least.
>
> HMM... You're right 5x4gb ports I think I started the math on 2g
> fabrics and recalced badly for 4gb fabrics.
>
> I'm just getting to the point of make as many drives as you need to
> achieve your necessary bandwidth result and functionality.
>
> One important point is to make sure you keep your VTL tapes tiny (we
> use 100gb) because if you're writing you can't be reading those tapes.
>
> Alec
>
> <snippage>
>
>
Ok, this helps a bunch....a little light bulb went off when I saw that you're
calculating 120MBps per drive. I totally track what you're saying now....
Thanks tons!
--brerrabbit
+----------------------------------------------------------------------
|This was sent by drhulme AT tarrantcounty DOT com via Backup Central.
|Forward SPAM to abuse AT backupcentral DOT com.
+----------------------------------------------------------------------
To sign off this list, send email to listserv AT listserv.temple DOT edu and
type "signoff networker" in the body of the email. Please write to
networker-request AT listserv.temple DOT edu if you have any problems with this
list. You can access the archives at
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER
|
|
|