From dcd7ace0e0ec1d5f1dfc1a16cd781a4b4d2f7634 Mon Sep 17 00:00:00 2001 From: Chin-Ya Huang Date: Tue, 24 Sep 2024 09:30:25 +0800 Subject: [PATCH] doc(1.8.0): auto-salvage support for v2 volumes longhorn/longhorn-8430 Signed-off-by: Chin-Ya Huang --- content/docs/1.8.0/important-notes/_index.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/content/docs/1.8.0/important-notes/_index.md b/content/docs/1.8.0/important-notes/_index.md index 035d74029..259f5bef4 100644 --- a/content/docs/1.8.0/important-notes/_index.md +++ b/content/docs/1.8.0/important-notes/_index.md @@ -40,6 +40,7 @@ Please see [here](https://github.com/longhorn/longhorn/releases/tag/v{{< current - [Snapshot Creation Time As Shown in the UI Occasionally Changes](#snapshot-creation-time-as-shown-in-the-ui-occasionally-changes) - [Unable To Revert a Volume to a Snapshot Created Before Longhorn v1.7.0](#unable-to-revert-a-volume-to-a-snapshot-created-before-longhorn-v170) - [Disaster Recovery Volumes](#disaster-recovery-volumes) + - [Auto-Salvage Volumes](#auto-salvage-volumes) ## Deprecation @@ -256,6 +257,8 @@ Before Longhorn v1.7.0, Longhorn block-type disks only supported the SPDK AIO bd Filesystem trim is supported since Longhorn v1.7.0. If a disk is managed by the SPDK AIO bdev driver, the Trim (UNMAP) operation is not recommended in a production environment (ref). It is recommended to manage a block-type disk with an NVMe bdev driver. +Starting with Longhorn v1.8.0, filesystem trim is blocked when the the targeting v2 volume is in a degraded state. This ensures the reliability of the volume head size during the [auto-salvage](#auto-salvage-volumes) operation. + ### Linux Kernel on Longhorn Nodes Host machines with Linux kernel 5.15 may unexpectedly reboot when volume-related IO errors occur. To prevent this, update the Linux kernel on Longhorn nodes to version 5.19 or later. For more information, see [Prerequisites](../v2-data-engine/prerequisites/). Version 6.7 or later is recommended for improved system stability. @@ -271,3 +274,7 @@ Reverting a volume to a snapshot created before Longhorn v1.7.0 is not supported ### Disaster Recovery Volumes Disaster recovery volumes are supported from Longhorn v1.8.0. + +### Auto-salvage Volumes + +Auto-salvage volumes are supported from Longhorn v1.8.0.