Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Mon, 2006-10-16 at 20:54 -0500, CA Lists wrote: > My concern was that having multiple clients writing data to the same disk > might be an issue for DRBD, but, based on your response, I'm assuming that > as long as the filesystem support write ordering, DRBD doesn't really care. > Is that an accurate assumption? Yes thats correct assumption. But check with the stable versions 0.7.X, I tried with 0.8.xPre (unstable) versions. See the publication (drbd8pre.pdf) page on drbd.org they have explained this situation handling. > Anyone else on the list done this before? I have tried with unstable version with both nodes active (primary) and OCFS2 above them. DRBD-8.0pre3 does well on it. > Thanks, > > Rob > > > Yes it is possible, and there is people that had done something like that > > before. > > You will do all that is done in the server part here: > > http://articles.techrepublic.com.com/5100-9592_11-5854600.html > > > > forget about the windows client part in the document. > > > > After you have one iscsi target under heartbeat exporting the drbd disk, you > > will have to install the iscsi initiator in the clients that will access the > > disk, and after that, install GFS in all the clients, pluss formatting the > > iscsi exported disk with gfs. > > > > You will use only drbd active/passive, there is no need to use active/active > > in this situation. > > > > You can use ocfs2 or any shared filesystem instead of gfs if you prefer. > > > > Please, documentate this configuration and send to me if possible. > > > > I had done this before, but didnt have time to documentate it yet. > > > > > > Best Regards. > > Leonardo Rodrigues de Mello > > > > -----Mensagem original----- > > De: drbd-user-bounces at lists.linbit.com em nome de CA Lists > > Enviada: dom 15/10/2006 13:39 > > Para: drbd-user at lists.linbit.com > > Cc: > > Assunto: [DRBD-user] DRBD + GFS + iSCSI? > > > > I'm wanting to create a cheap, yet redundant, iSCSI SAN solution. My thought > > was to get two separate servers, configure both with Linux-HA for failover, > > iSCSI Enterprise Target on a GFS (or OCFS2) disk, then mirror the disk from > > server1 to server2 via DRBD. I will need multiple clients (apache cluster & > > mysql cluster) to connect to whatever server is active at the time. I know > > that the current stable version of DRBD only supports 1 active system at a > > time, which is all I'm going for, but I wasn't sure if it would allow the > > disk to be exported via iSCSI and mounted on multiple clients at the same > > time, or if it considered that the same as trying to mount it on both > > servers at the same time. > > > > In the end, my goal is to have an iSCSI target machine, with a second one > > sitting there waiting (mirrored), just in case something goes wrong... > > > > Is this possible? Thanks, > > > > Rob > > > > > > _______________________________________________ > > drbd-user mailing list > > drbd-user at lists.linbit.com > > http://lists.linbit.com/mailman/listinfo/drbd-user > > > > > > > > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > > -- Milind "The world is divided into one group: those who start counting at 0, and those who don't."