HP MSA 2040 SAN Storage - Manual (Page 79)

Rear panel LEDs 79
MSA 2040 SAS controller module—rear panel LEDs
1 See the qualified HD mini-SAS host cable options described in QuickSpecs.
Figure 37 LEDs: MSA 2040 SAS controller module
NOTE: Once a Link Status LED is lit, it remains so, even if the controller is shutdown via the SMU or CLI.
When a controller is shutdown or otherwise rendered inactive—its Link Status LED remains
illuminated—falsely indicating that the controller can communicate with the host. Though a link exists
LED Description Definition
1 Host 6/12 Gb SAS, 1
Link Status
Off — No link detected.
Green — The port is connected and the link is up.
2 Host 6/12 Gb SAS 1
Link Activity
Off — The link is idle.
Blinking green — The link has I/O activity.
3 Network Port Link
Active Status
Off — The Ethernet link is not established, or the link is down.
Green — The Ethernet link is up (applies to all negotiated link speeds).
4 Network Port Link Speed Off — Link is up at 10/100base-T negotiated speeds.
Amber — Link is up and negotiated at 1000base-T.
5 OK to Remove Off — The controller module is not prepared for removal.
Blue — The controller module is prepared for removal.
6 Unit Locator Off — Normal operation.
Blinking white — Physically identifies the controller module.
7 FRU OK Off — Controller module is not OK.
Blinking green — System is booting.
Green — Controller module is operating normally.
8 Fault/Service Required Amber — A fault has been detected or a service action is required.
Blinking amber — Hardware-controlled power-up or a cache flush or restore
error.
9 Cache Status Green — Cache contains unwritten data and operation is normal. The
unwritten information can be log or debug data that remains in the cache, so
a Green cache status LED does not, by itself, indicate that any user data is at
risk or that any action is necessary.
Off — In a working controller, cache is clean (contains no unwritten data).
This is an occasional condition that occurs while the system is booting.
Blinking green — A CompactFlash flush or cache self-refresh is in progress,
indicating cache activity.
See also Cache Status LED details .
10 Expansion Port Status Off — The port is empty or the link is down.
On — The port is connected and the link is up.
CACHE
CLI
CLI
LINK ACT
6Gb/s
SERVICE−1 SERVICE−2
ACT
LINK 12Gb/s
S
S
A
ACT
LINK
SAS 1 SAS 2
ACT
LINK 12Gb/s
S
S
A
ACT
LINK
SAS 3 SAS 4
5
3 4 6
1
8 9
7
: 2