[DRBD-user] Re: [Q] Shrinking the drbd

Maurice Volaski mvolaski at aecom.yu.edu
Sat Jun 25 09:44:03 CEST 2005

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

The way I did it was to create the logical volume, drbd device and 
filesystem in the correct size on the second system with it being 
unconnected. I used fdisk -s to find out filesystem's corrected 
(shrunken) size (in K). That means that the size parameter to pass to 
drbdsetup's resize is that size + exactly 128 MB (in K).

>But now I have to shrink one. That's more complicated. The question
>is whether drbd resize will know to use the filesystem's size, which
>is correct, or the lvm size, which, since it hasn't been reduced yet,
>is wrong? If it picks the wrong one, should I give it the
>filesystem's exact size (fdisk -s device)?


Maurice Volaski, mvolaski at aecom.yu.edu
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University

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