Bug 2089266 - [RFE] SSD persistent write-back cache GA
Summary: [RFE] SSD persistent write-back cache GA
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: RBD
Version: 6.0
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: ---
: 6.0
Assignee: Ilya Dryomov
QA Contact: Preethi
Masauso Lungu
URL:
Whiteboard:
Depends On:
Blocks: 2126050 2130423
TreeView+ depends on / blocked
 
Reported: 2022-05-23 10:26 UTC by Ilya Dryomov
Modified: 2023-03-20 18:57 UTC (History)
5 users (show)

Fixed In Version: ceph-17.2.2-1.el9cp
Doc Type: Enhancement
Doc Text:
.`librbd` SSD-based persistent write-back cache to reduce latency now fully supported. With this release, the `pwl_cache` librbd plugin provides a log-structured write-back cache targeted at SSD devices. Just as with the already provided log-structured write-back cache targeted at PMEM devices, the updates to the image are batched and flushed in-order, retaining the actual image in a crash-consistent state. The benefits and use cases remain the same, but users no longer need to procure more expensive PMEM devices to take advantage of them.
Clone Of:
: 2130423 (view as bug list)
Environment:
Last Closed: 2023-03-20 18:56:27 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHCEPH-4347 0 None None None 2022-05-23 10:39:00 UTC
Red Hat Product Errata RHBA-2023:1360 0 None None None 2023-03-20 18:57:02 UTC

Comment 1 RHEL Program Management 2022-05-23 10:26:18 UTC 
Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.
Comment 11 Preethi 2022-09-28 06:53:03 UTC 
We have completed QE efforts on testing, performance for GA efforts. Hence, will be closing this ticket and creating a new doc bz for tracking documentation efforts ie. Block device guide and Release notes
Comment 19 errata-xmlrpc 2023-03-20 18:56:27 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 6.0 Bug Fix update), 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-2023:1360
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