Since msa20 allows multi-initiator connections than I think it works with dl380 since it has an external scsi port. Also I have heard that msa20 can have an internal raid controller so ACU can configure it. By the way I have doubts to use shared scsi in RHCS. Does anyone use it (I am sure there are) and those who use it recommend it for a cheap but RELIABLE cluster storage with RHCS? > The MSA20 is only a disk shelf. You'd need to have it conneted to a raid > controller > which is built into the DL360 and above, or simply access the individual > drives > themselves. It does allow multi-initiator connections, but I think it's > more > along > the lines of having multiple paths to an MSA500 which is a two node > non-fibre > SAN > if it can even be considered a SAN since no fibre is involved. It's not > more > than > a high end external storage device. > > > > Corey > > -----Original Message----- > From: linux-cluster-bounces@xxxxxxxxxx > [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Lon Hohberger > Sent: Monday, May 08, 2006 10:11 AM > To: omer@xxxxxxxxx; linux clustering > Subject: Re: HP msa20 and rhcs? > > On Mon, 2006-05-01 at 22:11 +0300, Omer Faruk Sen wrote: >> Hi, >> >> I need a cheap shared storage and wanted to know if anyone in this >> list used HP MSA20 (shared SCSI) on rhcs? I want to setup a 2 node >> cluster with shared storage and cheapest HP shared storage seems to be > MSA20.. > > I've never used one; maybe someone else has. > > General rules of thumb when using SCSI shared storage: > > * If it requires a specific controller to make the RAID work, it probably > is > not a good bet, regardless of what the marketing literature would have you > believe. > > * If it works with a plain-jane SCSI (ex- an Adaptec 2940U2W) card and > still > has some way of accessing the array management tools (ex: a serial > port) for configuring/presenting the LUNs, it should generally "just > work". > > There are undoubtedly exceptions to these rules. I'm not at all familiar > with the MSA20. > > I do, however, have a MSA500 which has been working fine. The MSA500 > needs > CCISS controllers to talk to the on-board MSA controller and configure the > LUNs during bootup. After that, the CCISS controllers act as "dumb" SCSI > cards when talking to the MSA500, or so it seems. It's been working fine > in > a 2-node failover cluster for a couple of years, but I have not tried it > with > GFS. > > Whether that means the MSA20 will work... I do not know. It might ;) > > -- Lon > > -- > > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster > -- Omer Faruk Sen http://www.faruk.net -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
