Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Me said: >> * parted output: >> >> Disk geometry for /dev/sdf: 0kB - 4500GB >> Disk label type: gpt >> Number Start End Size File system Name >> Flags >> 1 17kB 1500GB 1500GB >> 2 1500GB 3000GB 1500GB >> 3 3000GB 4500GB 1500GB > > Ok, I just checked if it works with a smaller 600GB partition at the > end. > > Number Start End Size File system Name Flags > 1 17kB 1500GB 1500GB > 2 1500GB 3000GB 1500GB > 3 3000GB 3600GB 600GB > > /etc/init.d/drbd start > Starting DRBD resources: [ d0 d1 d2 s0 s1 s2 n0 n1 n2 ]. > .......... > > I'm not sure about that. Am I running in a drbd limitation? I thought > the limit of a _single_ drbd device would be ~3,8TB. Next step: I used the functionality of the RAID Controller to create <2TB volumes. Thus I now have 3 disks (sde/sdf/sdg), each with 1,5TB. drbd still fails to start r2. Starting DRBD resources: [ d0 d1 d2 ioctl(,SET_DISK_CONFIG,) failed: Cannot allocate memory cmd /sbin/drbdsetup /dev/drbd2 disk /dev/sdg1 internal -1 --on-io-error=detach failed! /var/log/messages is a bit more verbose: 42949598.710000] allocation failed: out of vmalloc space - use vmalloc=<size> to increase size. [42949598.710000] drbd2: OUT OF MEMORY! Could not allocate bitmap! Set device size => 0 This seems to be an FAQ: http://www.linux-ha.org/DRBD/FAQ#head-c6586035cbdd5cdae726b02406b838ee2fa56eae | What is warning: ''out of vmalloc space'' | | For each device, drbd will (try to) allocate X MB of bitmap, plus some | constant amount (<1MB). X = storage_size_in_GB/32, so 1 TB storage -> 32 | MB bitmap. | | By default Linux allocates 128MB to Vmalloc. For systems using more than | 4TB, this may cause an issue. | | If you get the following error message in /var/log/messages, Try a Linux | 2.6 hugemem kernel. | | kernel: allocation failed: out of vmalloc space - use vmalloc=<size> to | increase size. I tried this two kernel images that are available for ubuntu 6.06. 2.6.15-26-server 2.6.15-27-686 I can't find anything about hugemem support on the ubuntu web pages or the ubuntu wiki. Anyone using ubunto or debian? Do I have to compile a custom kernel to get this working? Ralf