Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Bug 1637939

Summary:	[RFE] We need additional aligments for a 4k block devices
Product:	Red Hat Enterprise Linux 7	Reporter:	Denis Chaplygin <dchaplyg>
Component:	sanlock	Assignee:	David Teigland <teigland>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	7.7	CC:	agk, cluster-maint, jbrassow, rcyriac, rhandlin, salmy, seamurph, teigland
Target Milestone:	rc	Keywords:	FutureFeature, Reopened
Target Release:	7.7
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-04-05 19:41:47 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:

Description Denis Chaplygin 2018-10-10 11:18:43 UTC

Description of problem: Existing 4k alignment uses 8MB for a lease, makeing it 8 times bigger compared to 512b aligment. 

This will heavilly increase size of sanlock based locks files in oVirt (up to tenth of gigabytes)

To decrease impact of that it would be great to have smaller aligments for a 4k block, like those:

 - ALIGN1M | SECTOR512: max_hosts 2000 (already implemented)
 - ALIGN1M | SECTOR4K:  max_hosts 250
 - ALIGN2M | SECTOR4K:  max_hosts 500
 - ALIGN4M | SECTOR4K:  max_hosts 1000
 - ALIGN8M | SECTOR4K:  max_hosts 2000 (already implemented)

Comment 14 David Teigland 2019-04-01 15:28:45 UTC

Configurable sector/lease sizes have been available for quite a long time.

Also see bug 1690511 "rebase sanlock package in 7.7".

Comment 16 Jonathan Earl Brassow 2019-04-01 19:31:24 UTC

This feature is not in RHEL7.6, but its inclusion is already accounted for in bug 1690511.

closing this bug as a duplicate.

*** This bug has been marked as a duplicate of bug 1690511 ***