Re: [9fans] Petabytes on a budget: JBODs + Linux + JFS

[Jack Norton <jack@0x6a.com>]

erik quanstrom wrote:
>> Also, another probably dumb question: did the the fileserver machine use
>> the AoE device as a kenfs volume or a fossil(+venti)?
>>
>
> s/did/does/.  the fileserver is running today.
>
> the fileserver provides the network with regular 9p fileserver
> with three attach points (main, dump, other) accessable via il/ip.
> from a client's view of the 9p messages, fossil, fossil+venti and
> ken's fs would be difficult to distinguish.
>
> - erik
>
>

Very cool.
So what about having venti on an AoE device, and fossil on a local drive
(say an ssd even)?  How would you handle (or: how would venti handle), a
resize of the AoE device?  Let's say you add more active drives to the
RAID pool on the AoE machine (which on a linux fileserver would then
involve resizing partition on block device, followed by growing the
volume groups if using lvm, followed by growing the filesystem).
Sorry for thinking out loud... I should get back to work anyway....  fun
thread though.

-Jack