[DRBD-user] drbd-user Digest, Vol 119, Issue 22

rf at q-leap.de rf at q-leap.de
Fri Jun 27 11:12:50 CEST 2014

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

>>>>> "Allen" == Allen Chen <achen at harbourfrontcentre.com> writes:

    Allen> Here is my explanation to use DRBD instead of md raid1: for
    Allen> md raid1, if one member is physically removed from the
    Allen> machine, and after you reconnect the same disk to md raid1,
    Allen> MD will re-sync everything to it.

Wrong, see below.

    Allen> It takes much more time.  for DRBD, if the second disk is
    Allen> removed from the machine, and after you reconnect the same
    Allen> disk to DRBD, DRBD will sync whatever has been changed. It
    Allen> take less time than MD raid1.

md raid1 can do the same thing and is definitely the better tool for this
job. See e.g.



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