Hi,
with this release we fixed some performance regressions in 8.4 that
trigger only when DRBD is used as block storage target. (I.e. they
do not triggered when you have a file system on top of it).
When it comes to new features a lot was done that DRBD works better
with thinly provisioned storage and SSDs (WRITE_SAME & resync).
Look for 'rs-discard-granularity' and 'discard-zeroes-if-aligned'
on the man-pages.
drbd
8.4.7-1 (api:genl1/proto:86-101)
-------
* introduce WRITE_SAME support
* introduce discard-capable (or thinly allocated) device friendly resync
* improve latency on certain kernel versions and usage patterns
* improve latency of disk flushes with multiple volumes
* fix recovery handling of certain multiple error scenarios,
including possible deadlocks after certain multiple failure sequences
* introduce unfence-peer handler,
to close possible races if the replication link is flaky
* avoid potential spurious full resync by
* improve discard support, reliably zero-out/discard even with discard_zeroes_data=0
* update wrapper defines for linux 4.3
* fix latency regression introduced with 8.4.5
protocol A was sometimes synchronous, C sometimes double-latency
* avoid potential deadlock during handshake
* avoid potential deadlock in disconnect during resync
with fencing resource-and-stonith
* allow IO during some bitmap bulk IO operations
* fix "endless" transfer log walk in protocol A
http://oss.linbit.com/drbd/8.4/drbd-8.4.7-1.tar.gz
http://git.drbd.org/drbd-8.4.git/tag/refs/tags/drbd-8.4.7
drbd-utils
8.9.5
--------
* add support for new disk option 'rs-discard-granularity' (module v8.4.7)
* add support for new disk option 'discard-zeroes-if-aligned' (module v8.4.7)
* add support for v9 "path" commands
* doc improvements/corrections
* improvements to drbd ocf resource agent
and pacemaker "constraint based fencing" (crm-fence-peer.sh)
* drbd-overview improvements
http://oss.linbit.com/drbd/drbd-utils-8.9.5.tar.gz
http://git.drbd.org/drbd-utils.git/tag/refs/tags/v8.9.5
cheers,
Phil
_______________________________________________
drbd-announce mailing list
drbd-announce@lists.linbit.com
http://lists.linbit.com/mailman/listinfo/drbd-announce
with this release we fixed some performance regressions in 8.4 that
trigger only when DRBD is used as block storage target. (I.e. they
do not triggered when you have a file system on top of it).
When it comes to new features a lot was done that DRBD works better
with thinly provisioned storage and SSDs (WRITE_SAME & resync).
Look for 'rs-discard-granularity' and 'discard-zeroes-if-aligned'
on the man-pages.
drbd
8.4.7-1 (api:genl1/proto:86-101)
-------
* introduce WRITE_SAME support
* introduce discard-capable (or thinly allocated) device friendly resync
* improve latency on certain kernel versions and usage patterns
* improve latency of disk flushes with multiple volumes
* fix recovery handling of certain multiple error scenarios,
including possible deadlocks after certain multiple failure sequences
* introduce unfence-peer handler,
to close possible races if the replication link is flaky
* avoid potential spurious full resync by
* improve discard support, reliably zero-out/discard even with discard_zeroes_data=0
* update wrapper defines for linux 4.3
* fix latency regression introduced with 8.4.5
protocol A was sometimes synchronous, C sometimes double-latency
* avoid potential deadlock during handshake
* avoid potential deadlock in disconnect during resync
with fencing resource-and-stonith
* allow IO during some bitmap bulk IO operations
* fix "endless" transfer log walk in protocol A
http://oss.linbit.com/drbd/8.4/drbd-8.4.7-1.tar.gz
http://git.drbd.org/drbd-8.4.git/tag/refs/tags/drbd-8.4.7
drbd-utils
8.9.5
--------
* add support for new disk option 'rs-discard-granularity' (module v8.4.7)
* add support for new disk option 'discard-zeroes-if-aligned' (module v8.4.7)
* add support for v9 "path" commands
* doc improvements/corrections
* improvements to drbd ocf resource agent
and pacemaker "constraint based fencing" (crm-fence-peer.sh)
* drbd-overview improvements
http://oss.linbit.com/drbd/drbd-utils-8.9.5.tar.gz
http://git.drbd.org/drbd-utils.git/tag/refs/tags/v8.9.5
cheers,
Phil
_______________________________________________
drbd-announce mailing list
drbd-announce@lists.linbit.com
http://lists.linbit.com/mailman/listinfo/drbd-announce