Hi,
I have some questions regarding the initial syncing of a drbd partition,
where I could not find answers for in the drbd documentation.
Let's assume the following case:
Two computers have their own hard disks, each of them has a partition
which is synced via drbd
with the other computer's hard disk partition.
Let's say this partition is only used to one third, so two thirds of it
are still free.
Now on one machine the hard disk has a physical problem and is replaced
by a fresh one.
Of course now for the fresh hard disk an initial syncing needs to be done.
Now my questions:
- How efficient is the initial syncing ?
Will only the used blocks be synced or the complete partition (so
also the unused, free blocks) ?
Would it be useful to delete unnecessary files before the initial
syncing to reduce the syncing time ?
- Are there any means (e.g. drbd configuration options) to shorten the
initial syncing time ?
Would e.g. checksum-based syncing help to identify faster the free
blocks and skip them for syncing ?
Thanks and best regards,
Joerg May
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