fs/zfs/spa.c

130  * to get the vdev stats associated with the imported devices.
381 			 * Make sure the vdev config is bootable
795 	    offsetof(struct vdev, vdev_txg_node));
874  * Verify a pool configuration, and construct the vdev tree appropriately.  This
875  * will create all the necessary vdevs in the appropriate layout, with each vdev
877  * All vdev validation is done by the vdev_alloc() routine.
1059 	 * for basic validation purposes) and one in the active vdev
1061 	 * validate each vdev on the spare list.  If the vdev also exists in the
1062 	 * active configuration, then we also mark this vdev as an active spare.
1080 			 * able to load the vdev.  Otherwise, importing a pool
1169 				 * Retain previous vdev for add/remove ops.
1179 			 * Create new vdev
1187 			 * Commit this vdev as an l2cache device,
1276  * Checks to see if the given vdev could not be opened, in which case we post a
1345 	 * Compare the root vdev tree with the information we have
1346 	 * from the MOS config (mrvd). Check each top-level vdev
1356 		 * about the top-level vdev then use that vdev instead.
1380 			 * Swap the missing vdev with the data we were
1627 spa_vdev_err(vdev_t *vdev, vdev_aux_t aux, int err)
1629 	vdev_set_state(vdev, B_TRUE, VDEV_STATE_CANT_OPEN, aux);
1642  * we do a reopen() call.  If the vdev label for every disk that was
1672 		if (glist[i] == 0)	/* vdev is hole */
1814 	 * Parse the configuration into a vdev tree.  We explicitly set the
1841 	 * We need to validate the vdev labels against the configuration that
1843 	 * mosconfig is true then we're validating the vdev labels based on
1847 	 * the vdev config.
1883 	 * If the vdev guid sum doesn't match the uberblock, we have an
2098 	 * Load the vdev state for all toplevel vdevs.
2140 		 * root vdev.  If it can't be opened, it indicates one or
2330  * The stats information (gen/count/ustats) is used to gather vdev statistics at
2398 			 * information: the state of each vdev after the
2535  * Add l2cache device information to the nvlist, including vdev stats.
2657  * array of nvlists, each which describes a valid leaf vdev.  If this is an
2890 	 * Create the root vdev.
3070 	 * Add this top-level vdev to the child array.
3079 	 * Put this pool's top-level vdevs into a root vdev.
3090 	 * Replace the existing vdev_tree with the new root vdev in
3099  * Walk the vdev tree and see if we can find a device with "better"
3135  * the vdev (e.g. "id1,sd@SSEAGATE..." or "/pci@1f,0/ide@d/disk@0,0:a").
3136  * The GRUB "findroot" command will return the vdev we should boot.
3190 	 * Build up a vdev tree based on the boot device's label config.
3207 	 * Get the boot vdev.
3210 		cmn_err(CE_NOTE, "Can not find the boot vdev for guid %llu",
3229 	 * If the boot device is part of a spare vdev then ensure that
3724 	 * Transfer each new top-level vdev from vd to rvd.
3729 		 * Set the vdev id to the first hole, if one exists.
3783  * a device that is not mirrored, we automatically insert the mirror vdev.
3787  * mirror using the 'replacing' vdev, which is functionally identical to
3788  * the mirror vdev (it actually reuses all the same ops) but has a few
3842 		 * vdev.
3862 		 * want to create a replacing vdev.  The user is not allowed to
3863 		 * attach to a spared vdev child unless the 'isspare' state is
3889 	 * than the top-level vdev.
3915 	 * mirror/replacing/spare vdev above oldvd.
3973 	    "%s vdev=%s %s vdev=%s",
3988  * Detach a device from a mirror or replacing vdev.
3990  * is a replacing vdev.
4020 	 * vdev that's replacing B with C.  The user's intent in replacing
4028 	 * that C's parent is still the replacing vdev R.
4061 	 * If we are detaching the second disk from a replacing vdev, then
4062 	 * check to see if we changed the original vdev's path to have "/old"
4117 	 * do it now, marking the vdev as no longer a spare in the process.
4133 	 * If the parent mirror/replacing vdev only has one child,
4146 	 * may have been the previous top-level vdev.
4152 	 * Reevaluate the parent vdev state.
4160 	 * add metaslabs (i.e. grow the pool). We need to reopen the vdev
4190 	    "vdev=%s", vdpath);
4194 	 * If this was the removal of the original device in a hot spare vdev,
4241 	vdev_t *rvd, **vml = NULL;			/* vdev modify list */
4298 	/* then, loop over each vdev and validate it */
4459 				    spa, tx, "vdev=%s",
4581 	 * associated with this vdev, and wait for these changes to sync.
4631 	 * Reassess the health of our root vdev.
4639  * Removing a device from the vdev namespace requires several steps
4707 		 * Stop allocating from this vdev.
4719 		 * Attempt to evacuate the vdev.
4726 		 * If we couldn't evacuate the vdev, unwind.
4734 		 * Clean up the vdev namespace.
4745 		 * There is no vdev of any kind with the specified guid.
4757  * Find any device that's done replacing, or a vdev marked 'unspare' that's
4773 	 * vdev in the list to be the oldest vdev, and the last one to be
4775 	 * the case where the newest vdev is faulted, we will not automatically
4872  * Update the stored path or FRU for this vdev.
5475 	 * If there are any pending vdev state changes, convert them
5484 		 * eliminate the aux vdev wart by integrating all vdevs
5485 		 * into the root vdev tree.
5575 	 * Rewrite the vdev configuration (which includes the uberblock)
5585 		 * We hold SCL_STATE to prevent vdev open/close/etc.
5586 		 * while we're attempting to write the vdev labels.
5829  * filled in from the spa and (optionally) the vdev.  This doesn't do anything