Re: write-intent bitmaps

2008-01-29 Thread Russell Coker
On Tuesday 29 January 2008 20:13, Peter Rabbitson <[EMAIL PROTECTED]> wrote: > Russell Coker wrote: > > Are there plans for supporting a NVRAM write-back cache with Linux > > software RAID? > > AFAIK even today you can place the bitmap in an external file residing on a > file system which in turn

Re: write-intent bitmaps

2008-01-29 Thread Peter Rabbitson
Russell Coker wrote: Are there plans for supporting a NVRAM write-back cache with Linux software RAID? AFAIK even today you can place the bitmap in an external file residing on a file system which in turn can reside on the nvram... Peter - To unsubscribe from this list: send the line "uns

Re: write-intent bitmaps

2008-01-28 Thread Russell Coker
stripes, and the NVRAM cache removes the need for write-intent bitmaps. AFAIK Linux software RAID doesn't support such things and that putting filesystem journals and the write-intent bitmap blocks on NVRAM devices is the best that you could achieve. It seems that if you want the best perfor

Re: write-intent bitmaps

2008-01-27 Thread Russell Coker
On Sunday 27 January 2008 22:21, Neil Brown <[EMAIL PROTECTED]> wrote: > On Sunday January 27, [EMAIL PROTECTED] wrote: > > http://lists.debian.org/debian-devel/2008/01/msg00921.html > > > > Are they regarded as a stable feature? If so I'd like to see > > distributions supporting them by default.

Re: write-intent bitmaps

2008-01-27 Thread Neil Brown
On Sunday January 27, [EMAIL PROTECTED] wrote: > http://lists.debian.org/debian-devel/2008/01/msg00921.html > > Are they regarded as a stable feature? If so I'd like to see distributions > supporting them by default. I've started a discussion in Debian on this > topic, see the above URL for de

write-intent bitmaps

2008-01-27 Thread Russell Coker
http://lists.debian.org/debian-devel/2008/01/msg00921.html Are they regarded as a stable feature? If so I'd like to see distributions supporting them by default. I've started a discussion in Debian on this topic, see the above URL for details. -- [EMAIL PROTECTED] http://etbe.coker.com.au/