[DRBD-user] init disk with data

Xan podpiskar at gmail.com
Fri Aug 16 10:09:11 CEST 2013

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hello!

I have a disk size of 100 GB and an ext2 partition
I thought for metadata need less than 5MB
102400 Мб /32768 + 1 = 4,125 Mb (http://www.drbd.org/users-guide-8.3/ch-internals.html#s-internal-meta-data )

I reduced partition 5 MB through Gparted, but have mistake

sudo drbdadm create-md r0

DRBD module version: 8.3.13
   userland version: 8.3.11
you should upgrade your drbd tools!
md_offset 107240144896
al_offset 107240112128
bm_offset 107236835328

Found ext2 filesystem
   104726528 kB data area apparently used
   104723472 kB left usable by current configuration

Device size would be truncated, which
would corrupt data and result in
'access beyond end of device' errors.
You need to either
   * use external meta data (recommended)
   * shrink that filesystem first
   * zero out the device (destroy the filesystem)
Operation refused.

Command 'drbdmeta 0 v08 /dev/vdb1 internal create-md' terminated with exit code 40
drbdadm create-md r0: exited with code 40

Please, help..


sudo gdisk /dev/vdb

GPT fdisk (gdisk) version 0.8.1

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.

Disk /dev/vdb: 209715200 sectors, 100.0 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): BDAE3138-97D3-460B-913E-C77E3DA79F73
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 209715166
Partitions will be aligned on 2048-sector boundaries
Total free space is 309906 sectors (151.3 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048       209407274   99.9 GiB    8300  Linux filesystem





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