[9front] Looking for documentation on adding a WORM pation(s) across mutliple disks

[9front] Looking for documentation on adding a WORM pation(s) across mutliple disks

[fulton]

My file server is currently running off a single 512GB ssd. this is fine for now, but I want more space for large media files such as music and high res photo's. I'm thinking about purchasing a couple of new hard drives, making each of them one big WORM and adding them to my existing cwfs configuration. To clarify, I want to go from this:

/dev/sdC0/other
/dev/sdC0/fscache
/dev/sdC0/fsworm

to

this:

/dev/sdC0/other
/dev/sdC0/fscache
/dev/sdC0/fsworm
/dev/sdC1/fsworm
...
/dev/sdCN/fsworm

and have everything work together to give my file server a giant, multi drive WORM.

I assume this is possible, but I have not been able to find much documentation on the subject, if you use this on your file server and know of some good doc's or want to write your own, that would be fantastic.

Thanks for your time :)
--
Fulton fulton.software!fulton

Re: [9front] Looking for documentation on adding a WORM pation(s) across mutliple disks

[Alex Musolino]

> I assume this is possible, but I have not been able to find much
> documentation on the subject, if you use this on your file server
> and know of some good doc's or want to write your own, that would be
> fantastic.

I would also assume this to be possible.  In fact, I imagine that
since you would just be adding more disks to your worm, this would
simply be a matter of updating the cwfs configuration from:

filsys main c(/dev/sdC0/fscache)(/dev/sdC0/fsworm)
filsys dump o

to:

filsys main c(/dev/sdC0/fscache)("/dev/sdC0/fsworm""/dev/sdC1/fsworm"..."/dev/sdCN/fsworm")
filsys dump o

This syntax is somewhat documented in fsconfig(8) but I did have to
look at the code to work out how to use the quotes in order to
concatenate devices.  I think I got it right, but...

Please note that I have not tried this.  Do please make backups before
proceeding.  No refunds.