Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
This article says it should recognize it automatically since I am using
external meta-data:
http://www.drbd.org/users-guide/s-resizing.html
What did I do wrong?
On Thu, Jan 20, 2011 at 3:32 PM, Cameron Smith <velvetpixel at gmail.com>wrote:
> This issue came up in a separate thread on a different topic and wanted to
> discuss it separately.
>
> I have a two node setup both running 8.2.6
>
> I increased the sizes of the physical disks on both nodes but DRBD is still
> only showing the old sizes.
>
> My DRBD meta-data is on it's own external partition and always has been.
>
> How can I have DRBD use the full size available?
>
>
> Here was my procedure:
> I was out of disk space so I took secondary offline, rebuild it's array
> with larger disks, reinstalled the OS and built the correct partition
> scheme, installed DRBD and ran:
>
> drbdadm create-md r0
> drbdadm attach r0
> drbdadm syncer r0
> drbdadm connect r0
>
> It started to sync to the original primary and completed.
>
> I reinstalled all services and made secondary primary.
>
> I then rebuilt the new secondary with the same larger disks and matched all
> to the new primary. I installed DRBD and then ran:
>
> drbdadm create-md r0
> drbdadm attach r0
> drbdadm syncer r0
> drbdadm connect r0
>
> It synced completely.
>
> I have up to date on both but df -h on primary shows the old partition size
> still!!!
>
> You can see the old /dev/drbd1 saw 261G for sda5 and sda5 on new has much
> more space (as seen in parted) that is not available when mounted now.
>
> Here is info from primary:
>
> [root at web002 ~]# df -h
> Filesystem Size Used Avail Use% Mounted on
> /dev/sda2 9.7G 4.6G 4.7G 50% /
> /dev/sda1 99M 18M 77M 19% /boot
> tmpfs 3.9G 0 3.9G 0% /dev/shm
> /dev/drbd1 261G 227G 21G 92% /data
> [root at web002 ~]# parted
> GNU Parted 1.8.1
> Using /dev/sda
> Welcome to GNU Parted! Type 'help' to view a list of commands.
> (parted) print
>
> Model: DELL PERC 6/i Adapter (scsi)
> Disk /dev/sda: 599GB
> Sector size (logical/physical): 512B/512B
> Partition Table: msdos
>
> Number Start End Size Type File system Flags
> 1 32.3kB 107MB 107MB primary ext3 boot
> 2 107MB 10.8GB 10.7GB primary ext3
> 3 10.8GB 19.4GB 8587MB primary linux-swap
> 4 19.4GB 599GB 579GB extended
> 5 19.4GB 595GB 575GB logical ext3
> 6 595GB 599GB 4294MB logical
>
> (parted) quit
> Information: Don't forget to update /etc/fstab, if necessary.
>
> [root at web002 ~]# cat /etc/drbd.conf
> global {
> usage-count yes;
> }
> common {
> protocol C;
> }
> resource r0 {
> syncer {
> rate 110M;
> }
> on web001.example.com {
> device /dev/drbd1;
> disk /dev/sda5;
> address 10.0.114.2:7789;
> meta-disk /dev/sda6[0];
> }
> on web002.example.com {
> device /dev/drbd1;
> disk /dev/sda5;
> address 10.0.114.3:7789;
> meta-disk /dev/sda6[0];
> }
> }
>
>
>
> What can I do to have DRBD see all available space on /dev/sda5???
>
> Thanks!
>
>
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