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openzfs-docs/docs/msg/ZFS-8000-2Q/index.rst
Ryan Moeller c2fdbb197d Migrate ZFS-* message descriptions (#49)
Prerequisite for changing the URLs in the command outputs from
zfsonlinux.org to openzfs.github.io/openzfs-docs/

Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
2020-08-26 20:39:04 +03:00

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..
CDDL HEADER START
The contents of this file are subject to the terms of the
Common Development and Distribution License (the "License").
You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
or http://www.opensolaris.org/os/licensing.
See the License for the specific language governing permissions
and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each
file and include the License file at usr/src/OPENSOLARIS.LICENSE.
If applicable, add the following below this CDDL HEADER, with the
fields enclosed by brackets "[]" replaced with your own identifying
information: Portions Copyright [yyyy] [name of copyright owner]
CDDL HEADER END
Portions Copyright 2007 Sun Microsystems, Inc.
.. highlight:: none
Message ID: ZFS-8000-2Q
=======================
Missing device in replicated configuration
------------------------------------------
+-------------------------+--------------------------------------------------+
| **Type:** | Error |
+-------------------------+--------------------------------------------------+
| **Severity:** | Major |
+-------------------------+--------------------------------------------------+
| **Description:** | A device in a replicated configuration could not |
| | be opened. |
+-------------------------+--------------------------------------------------+
| **Automated Response:** | A hot spare will be activated if available. |
+-------------------------+--------------------------------------------------+
| **Impact:** | The pool is no longer providing the configured |
| | level of replication. |
+-------------------------+--------------------------------------------------+
.. rubric:: Suggested Action for System Administrator
.. rubric:: For an active pool:
If this error was encountered while running ``zpool import``, please
see the section below. Otherwise, run ``zpool status -x`` to determine
which pool has experienced a failure:
::
# zpool status -x
pool: test
state: DEGRADED
status: One or more devices could not be opened. Sufficient replicas exist for
the pool to continue functioning in a degraded state.
action: Attach the missing device and online it using 'zpool online'.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-2Q
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
test DEGRADED 0 0 0
mirror DEGRADED 0 0 0
c0t0d0 ONLINE 0 0 0
c0t0d1 FAULTED 0 0 0 cannot open
errors: No known data errors
Determine which device failed to open by looking for a FAULTED device
with an additional 'cannot open' message. If this device has been
inadvertently removed from the system, attach the device and bring it
online with ``zpool online``:
::
# zpool online test c0t0d1
If the device is no longer available, the device can be replaced
using the ``zpool replace`` command:
::
# zpool replace test c0t0d1 c0t0d2
If the device has been replaced by another disk in the same physical
slot, then the device can be replaced using a single argument to the
``zpool replace`` command:
::
# zpool replace test c0t0d1
Existing data will be resilvered to the new device. Once the
resilvering completes, the device will be removed from the pool.
.. rubric:: For an exported pool:
If this error is encountered during a ``zpool import``, it means that
one of the devices is not attached to the system:
::
# zpool import
pool: test
id: 10121266328238932306
state: DEGRADED
status: One or more devices are missing from the system.
action: The pool can be imported despite missing or damaged devices. The
fault tolerance of the pool may be compromised if imported.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-2Q
config:
test DEGRADED
mirror DEGRADED
c0t0d0 ONLINE
c0t0d1 FAULTED cannot open
Unlike when the pool is active on the system, the device cannot be
replaced while the pool is exported. If the device can be attached to
the system, attach the device and run ``zpool import`` again.
Alternatively, the pool can be imported as-is, though it will be
placed in the DEGRADED state due to a missing device. The device will
be marked as UNAVAIL. Once the pool has been imported, the missing
device can be replaced as described above.
.. rubric:: Details
The Message ID: ``ZFS-8000-2Q`` indicates a device which was unable
to be opened by the ZFS subsystem.