Bug 1878559 - [Intel RHCS Feat] Ceph: Replicated Write-back Cache support Optane PMem in librbd
Summary: [Intel RHCS Feat] Ceph: Replicated Write-back Cache support Optane PMem in li...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: RBD
Version: 5.0
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
: 5.0
Assignee: Ilya Dryomov
QA Contact: Harish Munjulur
Ranjini M N
URL:
Whiteboard:
Depends On: 1951982
Blocks: 1878238 1959686
TreeView+ depends on / blocked
 
Reported: 2020-09-14 01:22 UTC by AA
Modified: 2021-08-30 08:27 UTC (History)
14 users (show)

Fixed In Version: ceph-16.0.0-8633.el8cp
Doc Type: Technology Preview
Doc Text:
.librbd PMEM-based persistent write-back cache to reduce latency With this release, the new `pwl_cache` librbd plugin provides a log-structured write-back cache targeted at PMEM devices thereby reducing the latency. The updates to the image are batched and flushed in-order, retaining the actual image in a crash-consistent state. If the PMEM device is lost, the image is still accessible though it may appear outdated.
Clone Of:
Environment:
Last Closed: 2021-08-30 08:26:43 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHCEPH-987 0 None None None 2021-08-26 16:00:43 UTC
Red Hat Product Errata RHBA-2021:3294 0 None None None 2021-08-30 08:27:01 UTC

Comment 16 errata-xmlrpc 2021-08-30 08:26:43 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Red Hat Ceph Storage 5.0 bug fix and enhancement), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:3294
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