Customer Operations
174
DD400 Series Restorer User Guide
-
If a CPU temperature reaches 60 degrees centigrade, a warning message is generated. If a
CPU temperature reaches 74 degrees centigrade, the machine shuts down.
•
If one or more fans have failed or are running below the minimum required speed, the
Fan
Failure ...
summary lists the failed or failing fans. To replace a fan, see “Replace Fans”
Replace Disks
Note
Use only Data Domain Field Replaceable Units. Do not use disks from other sources.
Data Domain recommends timely replacement of components that generate excessive error log
messages or that are out of normal operating tolerances. To display details for disk hardware status,
use the
disk show reliability-data
command. The display is similar to the following:
#
disk show reliability-data
Disk ATA Bus Command Command Drive Awaiting Already Temp
Soft Err Timeouts Faults Soft Err Realloc Realloc
------ -------- -------- ------- -------- ------- ------- -----
disk1 0 0 0/ 0/ 0 0/ 0 0 0 28 C
disk2 0 0 0/ 0/ 0 0/ 0 0 1 35 C
disk3 0 0 0/ 0/ 0 0/ 0 0 0 30 C
disk4 0 0 0/ 0/ 0 1/ 0 0 0 27 C
.
.
.
The
Already Realloc
column indicates the end of the useful disk lifetime when the value
approaches the vendor-specific limit. The limit is 2000 for Maxtor Western Digital disks. Use the
disk show config
command to display the disk vendor.
A restorer has either 8 or 15 disks, depending on the model. Each disk has two LEDs at the bottom
of the disk carrier. The right LED on each disk flashes green whenever the system accesses the
disk. The left LED glows red when the disk has failed. Both LEDs are dark on the disk that is
available as a spare. A system maintains data integrity of all data in the file system with a
maximum of two failed disks.
Figure 20 on page 175 shows disk numbering as seen from the front of the restorer: 1 through 15,
left to right. The numbering for models with 8 disks also starts with disk 1 at the left of the front of
the restorer. Models with 8 disks include a blank faceplate that covers the area shown as disks 9
through 15 in Figure 20.
Summary of Contents for DD400 Series
Page 1: ...Software Version 3 1 2 DD400 Series Restorer User Guide ...
Page 4: ......
Page 38: ...Regulatory Standards Compliance xxxviii DD400 Series Restorer User Guide ...
Page 54: ...Hardware System Level Interfaces 16 DD400 Series Restorer User Guide ...
Page 60: ...Display the Space Usage Graphs 22 DD400 Series Restorer User Guide ...
Page 96: ...The License Command 58 DD400 Series Restorer User Guide ...
Page 102: ...Return Command Output to a Remote machine 64 DD400 Series Restorer User Guide ...
Page 128: ...Clean Operations 90 DD400 Series Restorer User Guide ...
Page 138: ...Display the History of Disk Failures 100 DD400 Series Restorer User Guide ...
Page 182: ...CIFS Command 144 DD400 Series Restorer User Guide ...
Page 194: ...Procedure Replace a Replica 156 DD400 Series Restorer User Guide ...
Page 210: ...Send Log messages to Another System 172 DD400 Series Restorer User Guide ...
Page 228: ...Operations for Trained Service Personnel 190 DD400 Series Restorer User Guide ...