Rick On HP-UX disk mirroring is done in LVM. I'm using md driver for mirroring and LVM on top of it. Controlling access to my disks in LVM is just too late. I would have to assemble the array before I can activate VGs. If the array in question is being used on the other host nobody can guarantee that bad thing wont happen. And what I would like to prevent is: two hosts accessing (writing) an array. Thanks anyway for the hint. Regards, Chris On Thu, 9 Feb 2006 10:28:58 -0800 "Stern, Rick (Serviceguard Linux)" <rick.stern@xxxxxx> wrote: > There is more interest, just not vocal. > > May want to look at LVM2 and its ability to use tagging to control enablement of VGs. This way it is not HW dependent. > > -----Original Message----- > From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Chris Osicki > Sent: Thursday, February 09, 2006 2:26 AM > To: linux-raid@xxxxxxxxxxxxxxx > Subject: Re: Question: array locking, possible? > > > > It looks like we are the only two md users interested in such a > feature. > Not enough to get Neil's attention ;-) > > Regards, > Chris > > On Wed, 8 Feb 2006 21:45:33 +0100 > Jure Peèar <pegasus@xxxxxxxxxxx> wrote: > > > On Wed, 8 Feb 2006 11:55:49 +0100 > > Chris Osicki <osk@xxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > > > > > > > > > > I was thinking about it, I have no idea how to do it on Linux if ever possible. > > > I connect over fibre channel SAN, using QLogic QLA2312 HBAS, if it matters. > > > > > > Anyone any hints? > > > > I too am running a jbod with md raid between two machines. So far md never > > caused any kind of problems, altough I did have situations where both > > machines were syncing mirrors at once. > > > > If there's a little tool to reserve a disk via scsi, I'd like to know about > > it too. Even a piece of code would be enough. > > > > > > -- > > > > Jure Peèar > > http://jure.pecar.org/ > > - > > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
