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Bug 2089266

Summary:	[RFE] SSD persistent write-back cache GA
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Ilya Dryomov <idryomov>
Component:	RBD	Assignee:	Ilya Dryomov <idryomov>
Status:	CLOSED ERRATA	QA Contact:	Preethi <pnataraj>
Severity:	high	Docs Contact:	Masauso Lungu <mlungu>
Priority:	unspecified
Version:	6.0	CC:	ceph-eng-bugs, kdreyer, mlungu, vashastr, vereddy
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	6.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
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.	Story Points:	---
Clone Of:
Clones:	2130423 (view as bug list)		Environment:
Last Closed:	2023-03-20 18:56:27 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2126050, 2130423

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