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- ignore components whose mod_counter values are too low.

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- noting the mod_counter for autoconfigured sets would be a win too.
This commit is contained in:
oster 2000-02-25 19:56:32 +00:00
parent ecf1c1eb21
commit 503220a18f
1 changed files with 47 additions and 6 deletions
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53
sys/dev/raidframe/rf_disks.c
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@ -1,4 +1,4 @@
/* $NetBSD: rf_disks.c,v 1.19 2000/02/24 03:48:41 oster Exp $ */
/* $NetBSD: rf_disks.c,v 1.20 2000/02/25 19:56:32 oster Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
@ -415,6 +415,7 @@ rf_AutoConfigureDisks(raidPtr, cfgPtr, auto_config)
int force;
RF_AutoConfig_t *ac;
int parity_good;
int mod_counter;
#if DEBUG
printf("Starting autoconfiguration of RAID set...\n");
@ -430,6 +431,29 @@ rf_AutoConfigureDisks(raidPtr, cfgPtr, auto_config)
/* assume the parity will be fine.. */
parity_good = RF_RAID_CLEAN;
/* Check for mod_counters that are too low */
mod_counter = -1;
ac = auto_config;
while(ac!=NULL) {
if (ac->clabel->mod_counter > mod_counter) {
mod_counter = ac->clabel->mod_counter;
}
ac = ac->next;
}
if (mod_counter == -1) {
/* mod_counters were all negative!?!?!?
Ok, we can deal with that. */
#if 0
ac = auto_config;
while(ac!=NULL) {
if (ac->clabel->mod_counter > mod_counter) {
mod_counter = ac->clabel->mod_counter;
}
ac = ac->next;
}
#endif
}
for (r = 0; r < raidPtr->numRow; r++) {
numFailuresThisRow = 0;
for (c = 0; c < raidPtr->numCol; c++) {
@ -452,6 +476,7 @@ rf_AutoConfigureDisks(raidPtr, cfgPtr, auto_config)
printf("Found: %s at %d,%d\n",
ac->devname,r,c);
#endif
break;
}
ac=ac->next;
@ -500,13 +525,27 @@ rf_AutoConfigureDisks(raidPtr, cfgPtr, auto_config)
for all components, guaranteed */
raidPtr->serial_number =
ac->clabel->serial_number;
if (ac->clabel->clean != RF_RAID_CLEAN) {
parity_good = RF_RAID_DIRTY;
/* check the last time the label
was modified */
if (ac->clabel->mod_counter !=
mod_counter) {
/* Even though we've filled in all
of the above, we don't trust
this component since it's
modification counter is not
in sync with the rest, and we really
consider it to be failed. */
disks[r][c].status = rf_ds_failed;
numFailuresThisRow++;
} else {
if (ac->clabel->clean !=
RF_RAID_CLEAN) {
parity_good = RF_RAID_DIRTY;
}
}
} else {
/* Didn't find it!! Component must be dead */
/* Didn't find it at all!!
Component must really be dead */
disks[r][c].status = rf_ds_failed;
numFailuresThisRow++;
}
@ -518,6 +557,8 @@ rf_AutoConfigureDisks(raidPtr, cfgPtr, auto_config)
raidPtr->status[r] = rf_rs_degraded;
}
raidPtr->mod_counter = mod_counter;
/* note the state of the parity, if any */
raidPtr->parity_good = parity_good;
raidPtr->sectorsPerDisk = min_numblks;