Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I've internal metadata and have used the explanation on the website 1:1. Stefan cosmih schrieb: > Ok, but how do you have done the growth ? > > > On Wed, Dec 2, 2009 at 12:34 PM, Stefan Priebe - allied internet ag > <s.priebe at allied-internet.ag> wrote: >> Oh i don't know. Perhaps someone of DRBD devs. can say something about that. >> >> Stefan >> >> cosmih schrieb: >>> Hi Stefan, >>> >>> On my setup the metadata is on a separate disk partition, so it is >>> still needed the dumping of the metadata ? >>> Also, the grow of the disk partition is like: delete the partition -> >>> create a new one bigger with the same id? The bigger one need to use >>> the same cylinders? >>> >>> Thank you, >>> >>> -- >>> cosmih >>> >>> On Wed, Dec 2, 2009 at 11:13 AM, Stefan Priebe - allied internet ag >>> <s.priebe at allied-internet.ag> wrote: >>>> Yes that's right. I was simply using the commands explained at this url :-) >>>> >>>>>>> 1) put the DRBD resources into secondary mode (on each server) >>>> no simply drbdadm down resource on both >>>> >>>>>>> 2) stop the DRBD service on each server >>>> no >>>> >>>>>>> 3) resize the disk partition used for the DRBD devices on each >>>>> server (the disk partition used as meta-disk is not modified) >>>> NO first dump the metadata >>>> drbdadm dump-md resource > /tmp/metadata >>>> >>>> then you can grow the device - then reimport metadata and then drbd up. >>>> Then Filesystem resize. >>>> >>>> Stefan >>>> >>>> cosmih schrieb: >>>>> Hi Stefan, >>>>> >>>>> I mean the offline growing, because from the information available on >>>>> the specified URL I understands that the online rezise is possible >>>>> only when the DRBD device is on top of a LVM volume. >>>>> >>>>> Thank you, >>>>> >>>>> -- >>>>> cosmih >>>>> >>>>> On Wed, Dec 2, 2009 at 10:46 AM, Stefan Priebe - allied internet ag >>>>> <s.priebe at allied-internet.ag> wrote: >>>>>> Hi! >>>>>> >>>>>> Do you mean the offline growing or online growing? About the online >>>>>> growing i don't know anything :-) I haven't tested it at all. >>>>>> >>>>>> Stefan >>>>>> >>>>>> cosmih schrieb: >>>>>>> Hi Stefan, >>>>>>> >>>>>>> Are you so kind to detail a little bit more the growing process >>>>>>> (because on the URL provided is vague) ? The steps are something likes >>>>>>> below ? >>>>>>> 1) put the DRBD resources into secondary mode (on each server) >>>>>>> 2) stop the DRBD service on each server >>>>>>> 3) resize the disk partition used for the DRBD devices on each server >>>>>>> (the disk partition used as meta-disk is not modified) >>>>>>> 4) start the DRBD service on each server (at this step the two DRBD >>>>>>> devices will be into secondary mode) >>>>>>> 5) put one DRBD device into primary mode >>>>>>> 6) resize the filesystem on top the primary DRBD device >>>>>>> >>>>>>> >>>>>>> Thank you, >>>>>>> >>>>>>> -- >>>>>>> cosmih >>>>>>> >>>>>>> On Tue, Dec 1, 2009 at 2:56 PM, Stefan Priebe - allied internet ag >>>>>>> <s.priebe at allied-internet.ag> wrote: >>>>>>>> Hi! >>>>>>>> >>>>>>>> I've done an offline migration cause - we don't use LVM and without LVM >>>>>>>> online migration is not possible. >>>>>>>> >>>>>>>> So i can only tell you that the offline one >>>>>>>> (http://www.drbd.org/users-guide/s-resizing.html) is working fine :-) >>>>>>>> >>>>>>>> Stefan >>>>>>>> >>>>>>>> cosmih schrieb: >>>>>>>>> Hi Stefan, >>>>>>>>> >>>>>>>>> Do you succeed on your XFS, on top of DRBD, growth attempt ? >>>>>>>>> I am curious on this because I also need to do a growth of my DRBD device. >>>>>>>>> Here is my setup: >>>>>>>>> 1) Heartbeat standby/active over DRBD secondary/primary setup >>>>>>>>> 2) DRBD 8.0.16 >>>>>>>>> 3) HW RAID 10 --> sda6, 350GB disk partition; sda7, 1GB disk partition >>>>>>>>> --> drbd0, DRBD device on sda6; meta-disk on sda7 --> LVM PV --> one >>>>>>>>> LVM VG --> two LVM LV --> ext3 (meaning that the DRBD device use as >>>>>>>>> its storage a disk partition and there is LVM on top of DRBD and there >>>>>>>>> is ext3 on top of LVM) >>>>>>>>> What I need ? >>>>>>>>> Basically, I need more space on DRBD device, meaning from 350GB to >>>>>>>>> 450GB and I have this free space on HW RAID 10 volume. >>>>>>>>> Because the DRBD setup is used by some applications who need a very >>>>>>>>> high uptime I am interested by a solution for this growth who use the >>>>>>>>> secondary/primary feature of DRBD and the standby/active feature of >>>>>>>>> heartbeat or, at least, need a very low downtime. >>>>>>>>> >>>>>>>>> I would appreciate any advices. >>>>>>>>> >>>>>>>>> Thank you, >>>>>>>>> -- >>>>>>>>> cosmih >>>>>>>>> >>>>>>>>>> Hi! >>>>>>>>>> >>>>>>>>>> Yes of cause HW Raid. >>>>>>>>>> >>>>>>>>>> I'll do a test today - i've already prepared testequipment yesterday. >>>>>>>>>> >>>>>>>>>> Stefan >>>>>>>>>> >>>>>>>>>>> Stefan Seifert schrieb: >>>>>>>>>>> On Tuesday 24 November 2009 11:03:11 you wrote: >>>>>>>>>>>>> No you haven't. Like newer versions of fdisk you can use partprobe to >>>>>>>>>>>>> tell the kernel to re-read partition tables. >>>>>>>>>>>>> >>>>>>>>>>>>> Regards, >>>>>>>>>>>>> Stefan >>>>>>>>>>>> Thanks Stefan for your answer. I know partprobe - but does it work on a >>>>>>>>>>>> mounted partition? >>>>>>>>>>> For all I know it should work with a mounted partition as well. If the >>>>>>>>>>> partition were not mounted or otherwise used, you wouldn't need partprobe. >>>>>>>>>>> >>>>>>>>>>> And I assume "mounted" in this context means "used as drbd storage device". >>>>>>>>>>> I also assume that by RAID you mean some hardware RAID, because partitioning >>>>>>>>>>> an MD RAID wouldn't make much sense. >>>>>>>>>>> >>>>>>>>>>> Like with all these things it's a very good idea to first test it on a test >>>>>>>>>>> system. Ideally identical machines, but if not available at least some VM (we >>>>>>>>>>> use qemu for that and though its pretty slow, its enough for such tests). Life >>>>>>>>>>> gets so much more relaxed, if you don't have to experiment around with your >>>>>>>>>>> production machines :) >>>>>>>>>>> >>>>>>>>>>> Regards, >>>>>>>>>>> Stefan >>>>>>>>> _______________________________________________ >>>>>>>>> drbd-user mailing list >>>>>>>>> drbd-user at lists.linbit.com >>>>>>>>> http://lists.linbit.com/mailman/listinfo/drbd-user