Re: [squid-users] Multiple squid using same storage

It is technically feasible to share one or more fiber-attached
disks between multiple hosts when used with a disk array (a lot
more expensive and a lot faster than a single host-attached disk).
The more difficult part is to keep this shared disk synchronised
between hosts and to make sure that all instances of Squid
co-operate in keeping the data consistent.
What you are seeking is an advanced technology used by for instance
Oracle.

Oracle has invested a very large number of hours in the development
of this technology and partners with disk array vendors who provide
technological assistance with the development.
Squid is developed by a small virtually unfunded team and does not have
the resources to develop this.

Note also that the gains of a shared storage are relatively small.

Disks can be a bottleneck for Squid. This is generally resolved by
using more disks.
It is difficult to make a recommendation without knowing parameters
of your environment like:
- number of users
- internet usage profile of users
- availability requirements

Marcus

Hugo Monteiro wrote:
> On 01/03/2011 09:42 AM, Charbel Mitri wrote:
>> Dear all;
>>
>> Did anyone tried setting up multiple squid servers sharing same
>> storage (i.e Fiber Channel or iSCSI)?
>> Well I'm planning for this setup and gathering data before purchasing
>> the servers and storage devices.
>>
>> Thank you and regards;
>>
>> Charbel Mitri
>> **
>>
>>
>
> Hello Charbel,
>
> Wouldn't you always have to rely on a network filesystem for that?
> Although the media can be shared, how would you mount the same
> filesystem across the nodes?
> I would advise you to have a look into a cache sibling setup.
>
> Regards,
>
> Hugo Monteiro.
>
Received on Mon Jan 03 2011 - 13:26:53 MST