/*
* NAME: check_4_hs
*
* DESCRIPTION: Check every component of every raid unit for any device which
* needs to be backed with a hot spare.
*
* PARAMETERS: daemon_request_t *dr - hotspare request daemon
*
* LOCKS: Acquires and releases the Hotspare Request Lock and the RAID
* Driver Lock. Acquires the Unit Writer Lock which is released
* in check_comp_4_hs.
*/
static void
check_4_hs(daemon_request_t *dr)
{
mdi_unit_t *ui;
mr_unit_t *un;
md_link_t *next;
int i;
mutex_enter(&dr->dr_mx); /* clear up front so can poke */
dr->dr_pending = 0; /* again in low level routine if */
mutex_exit(&dr->dr_mx); /* something found to do */
/*
* Scan raid unit list and call component hotspare check routine for
* each component of each unit where resync is inactive.
*/
rw_enter(&raid_md_ops.md_link_rw.lock, RW_READER);
for (next = raid_md_ops.md_head; next != NULL; next = next->ln_next) {
ui = MDI_UNIT(next->ln_id);
un = (mr_unit_t *)md_unit_readerlock(ui);
if (!(un->c.un_status & MD_UN_RESYNC_ACTIVE) &&
(raid_state_cnt(un, RCS_RESYNC) == 0) &&
(UNIT_STATE(un) & RUS_ERRED) &&
(un->un_hsp_id != -1) &&
(raid_state_cnt(un, RCS_ERRED) == 1)) {
for (i = 0; i < un->un_totalcolumncnt; i++)
if (un->un_column[i].un_devstate == RCS_ERRED)
check_comp_4_hs(un, i);
}
md_unit_readerexit(ui);
}
rw_exit(&raid_md_ops.md_link_rw.lock);
}
/*
* NAMES: raid_replay_error
* DESCRIPTION: RAID metadevice replay error handling routine (TBD)
* PARAMETERS:
* RETURNS:
*/
static int
raid_replay_error(mr_unit_t *un, int column)
{
int error = RAID_RPLY_COMPREPLAY;
raid_set_state(un, column, RCS_ERRED, 0);
raid_commit(un, NULL);
if (UNIT_STATE(un) == RUS_LAST_ERRED) {
error = RAID_RPLY_READONLY;
SE_NOTIFY(EC_SVM_STATE, ESC_SVM_LASTERRED, SVM_TAG_METADEVICE,
MD_UN2SET(un), MD_SID(un));
} else if (UNIT_STATE(un) == RUS_ERRED) {
SE_NOTIFY(EC_SVM_STATE, ESC_SVM_ERRED, SVM_TAG_METADEVICE,
MD_UN2SET(un), MD_SID(un));
}
return (error);
}
