Hi Emmy COMSTAR lets you take a file/rawdevice/zfs-zvol (which we call the sbd backend) and expose it as a SCSI LUN. The caching comes from the backend e.g. if you are using zfs as backend, it will provide caching. As I mentioned before, performance is pretty good so far.
I hope someone will respond to the RAID controller support issue. Sumit On Mar 16, 2008, at 1:26 PM, Emmy wrote: > Okay, I hit a bit of a brick wall 10 minutes in to this project... > The server I have (a brand new HP DL380G5) doesn't seem to work > with Nevada (or Solaris 10, for that matter). It gets to disk > selection, and the list is empty - so I assume it does not see my > Smart Array P400 SAS RAID controller. Funnily enough, I also have > a Smart Array 6400 Ultra320 RAID controller in there too, with > logical drives defined, but it doesn't see that either - even > though the HCL says that the 6400 is supported... However, even if > it saw the 6400 I couldn't use it (my JBOD is attached to it) - the > OS *must* reside on the P400 system drives... Anyone know of a > driver update that might help here? > > I also had another question around caching. Many "high > performance" storage system use a relatively large amount of cache > to speed up transfers. This can have a significant impact on > performance, especially when we're talking about 16GB+ of cache. > Can COMSTAR use inband cache (or is it planned)? > > Thanks again! > > emmy > > > This message posted from opensolaris.org > _______________________________________________ > storage-discuss mailing list > [email protected] > http://mail.opensolaris.org/mailman/listinfo/storage-discuss _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
