4a0ee12af8
Problem ======= When we fail to open or import a storage pool, we typically don't get any additional diagnostic information, just "no pool found" or "can not import". While there may be no additional user-consumable information, we should at least make this situation easier to debug/diagnose for developers and support. For example, we could start by using `zfs_dbgmsg()` to log each thing that we try when importing, and which things failed. E.g. "tried uberblock of txg X from label Y of device Z". Also, we could log each of the stages that we go through in `spa_load_impl()`. Solution ======== Following the cleanup to `spa_load_impl()`, debug messages have been added to every point of failure in that function. Additionally, debug messages have been added to strategic places, such as `vdev_disk_open()`. Authored by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Andrew Stormont <andyjstormont@gmail.com> Approved by: Dan McDonald <danmcd@joyent.com> Ported-by: Tim Chase <tim@chase2k.com> Signed-off-by: Tim Chase <tim@chase2k.com> OpenZFS-issue: https://illumos.org/issues/8961 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/418079e0 Closes #7459 |
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README.markdown
ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.
Official Resources
Installation
Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.
Contribute & Develop
We have a separate document with contribution guidelines.