Hi,
You are correct and I am aware of I can calculate a theoretical maximum. But in
my world there is no definitely
equal sign between theory and practice. Hence the question about your
experience.
Thanks
Henrik
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT vm.marist DOT edu] On Behalf Of
Remco Post
Sent: den 29 januari 2010 07:41
To: ADSM-L AT vm.marist DOT edu
Subject: Re: [ADSM-L] Linux - number of drives/daily backup size
On 28 jan 2010, at 21:47, Henrik Vahlstedt wrote:
> Hi,
>
> Based on your experience.
> What is maximum number of drives, LTO4 or J3/T10KB, and still having an
> excellent performance when everything is used at the same time in a Linux
> server?
>
calculate the bandwidth of your PCI bus/slot in Gb/s
- you can only have one 4 Gb/s HBA working at 100% capacity on a PCI-X
133 bus
- 10 Gb/s ethernet requires PCI-X 266 or a suitable PCIe slot
calculate the bandwidth requirements of your drive
- you can have maybe 2 or 3 high-speed drives per HBA
> Size of daily backups?
> Server model?
> Drive type?
>
> Assumptions are larger models of HP or IBM servers on Intel/AMD, with SAN
> storage and 10 GigE.
>
>
> Thanks
> Henrik
>
>
>
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Met vriendelijke groeten/Kind regards,
Remco Post
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