On Sunday October 31, linux-raid@xxxxxxxxxxxxxxxxxx wrote: > Hi, > > I was wondering how to set up an extendable raid, just for backup/data > storage. It doesn't need to be high-performant - so imho I don't need a > hardware-raid. > > To provide a minimum of security I was wondering about using a soft-raid > 5 under Linux. However, I need to be able to extend the raid, if backup > demand rises. Therefor I plan to use a raid 5 with three or four devices > at the moment and need to be able to add more as the requirements grow. > > I saw that in mdadm, version 1.7.0, there was a "grow"-feature > introduced. However, at present it just works fine for raid 1 as far as > I know. Can somebody tell me, if it will shortly (in the next few month) > be possible to extend a soft-raid 5 with mdadm as well? What do you > think about data-security? And do I need a plain raid 5 with ext3 on it > or should I maybe put an LVM on top of raid 5 to be flexible? > mdadm --grow is unlikely the be able to add devices to a raid5 array in the near future. There is a program called "raidreconfig" (I think) which can do this off-line. This is information only, not a recommendation as I have never used it or looked at it. NeilBrown - 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
