MicroNet Fibre to SAS/SATA II RAID Subsystem Manual de usuario Pagina 142

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FIBRE-to-SAS/SATA RAID SUBSYSTEM
142
User Manual
Backplane
(RAID
Level 1, 5
or 10)
SATA link
failure
No effect
RAID
volume
degraded
Loss of high
availability,
system may
become
unavailable on
second failure
Performance
may drop.
Event log
and E-mail
Backplane
(RAID
Level 0)
SATA link
failure
RAID is
inaccessible
RAID
unavailable
N/A
Event log
and E-mail
Backplane
(RAID
Level 1, 5
or 10)
SATA link
degraded
No effect No effect
Performance
may drop.
Disk
statistics
updated in
controller
If threshold
met, Event
log and E-
mail
Backplane
(RAID
Level 0)
SATA link
degraded
No effect No effect
Performance
may drop.
Disk
statistics
updated in
controller
If threshold
met, Event
log and E-
mail
Enclosure Fan Failure No effect
System
availability at
risk until fan
replaced
No effect
Event log
and E-mail
Enclosure
PSU module
failure
No effect
System
availability at
risk until PSU
module
replaced
No effect
Event log
and E-mail
BBU BBU failure No effect
User data at
risk from
transient
power failure
if write
caching is
No effect
Event log
and E-mail
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