Albert Chin wrote: > On Tue, Sep 25, 2007 at 06:01:00PM -0700, Vincent Fox wrote: > >> I don't understand. How do you >> >> "setup one LUN that has all of the NVRAM on the array dedicated to it" >> >> I'm pretty familiar with 3510 and 3310. Forgive me for being a bit >> thick here, but can you be more specific for the n00b? >> > > If you're using CAM, disable NVRAM on all of your LUNs. Then, create > another LUN equivalent to the size of your NVRAM. Assign the ZIL to > this LUN. You'll then have an NVRAM-backed ZIL.
You probably don't have to create a LUN the size of the NVRAM either. As long as its dedicated to one LUN then it should be pretty quick. The 3510 cache, last I checked, doesn't do any per LUN segmentation or sizing. Its a simple front end for any LUN that is using cache. Do we have any log sizing guidelines yet? Max size for example? _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
