Skip to content

Commit 886fbf9

Browse files
authored
Merge pull request #68 from beavincent/patch-17
Update disks-redundancy.md
2 parents 03de10d + 52fb6fd commit 886fbf9

File tree

1 file changed

+2
-1
lines changed

1 file changed

+2
-1
lines changed

articles/virtual-machines/disks-redundancy.md

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -30,7 +30,8 @@ If your workflow doesn't support application-level synchronous writes across zon
3030

3131
Zone-redundant storage (ZRS) synchronously replicates your Azure managed disk across three Azure availability zones in the region you select. Each availability zone is a separate physical location with independent power, cooling, and networking. ZRS disks provide at least 99.9999999999% (12 9's) of durability over a given year.
3232

33-
A ZRS disk lets you recover from failures in availability zones. If a zone went down and your virtual machine (VM) wasn't affected, then your workloads will continue running. But if your VM was affected by an outage and you want to recover before it's resolved, you can either take a snapshot of the disk and make a new disk in a healthy zone, or copy the disk to a healthy zone. Once you've got a disk in a healthy zone, attach it to a VM in that zone. ZRS disks can also be shared between VMs for improved availability with clustered or distributed applications like SQL FCI, SAP ASCS/SCS, or GFS2. A shared ZRS disk can be attached to primary and secondary VMs in different zones to take advantage of both ZRS and [availability zones](../availability-zones/az-overview.md). If your primary zone fails, you can quickly fail over to the secondary VM using [SCSI persistent reservation](disks-shared-enable.md#supported-scsi-pr-commands).
33+
A ZRS disk lets you recover from failures in availability zones. If a zone went down and your virtual machine (VM) wasn't affected, then your workloads continue running. But if your VM was affected by an outage and you want to recover before it's resolved, you can either take a snapshot or make a copy of your ZRS disks. Once you've created new disks, attach them to a VM.
34+
ZRS disks can also be shared between VMs for improved availability with clustered or distributed applications like SQL FCI, SAP ASCS/SCS, or GFS2. A shared ZRS disk can be attached to primary and secondary VMs in different zones to take advantage of both ZRS and [availability zones](../availability-zones/az-overview.md). If your primary zone fails, you can quickly fail over to the secondary VM using [SCSI persistent reservation](disks-shared-enable.md#supported-scsi-pr-commands).
3435

3536
For more information on ZRS disks, see [Zone Redundant Storage (ZRS) option for Azure Disks for high availability](https://youtu.be/RSHmhmdHXcY).
3637

0 commit comments

Comments
 (0)