• FC 15K RPM drives < 200 IOPS
• SSD < 12000 IOPS
Operations such as servicemag and tunevv can cause this condition. If the IOPS rate is very high
and/or many drives are experiencing heavy I/O, examine the system further using statistical monitoring
commands/utilities such as statpd, the SSMC (GUI), and System Reporter. The following example
reports drives whose total I/O is 150/sec or more.
cli% statpd -filt curs,t,iops,15014:51:49 11/03/09 r/w I/O per second KBytes per sec ... Idle %
ID Port Cur Avg Max Cur Avg Max ... Cur Avg
100 3:2:1 t 658 664 666 172563 174007 174618 ... 6 6
pd example 4
Component --Identifier-- -------Detailed Description----------
PD disk:3 Detailed State: old_firmware
pd suggested action 4
The identified drive lacks firmware that the storage system considers current. When a drive is replaced,
the servicemag operation must upgrade the drive firmware. When drives are installed or added to a
system, the admithw command can perform the firmware upgrade. Check the state of the Drive using
CLI commands such as showpd -s , showpd -i , and showfirmwaredb.
cli% showpd -s 3Id CagePos Type -State-- -Detailed_State- --SedState
3 0:3:0 FC degraded old_firmware fips_capable
------------------------------------------------------
1 total
cli% showpd -i 3
cli% showfirmwaredb
pd example 5
Component --Identifier-- -------Detailed Description----------
PD -- Sparing Algorithm is not set
pd suggested action 5
Check the system’s Sparing Algorithm value using the CLI command showsys -param . The value is
normally set during the initial installation (OOTB). If it must be set later, use the command setsys
SparingAlgorithm ; valid values are Default, Minimal, Maximal, and Custom. After setting the
parameter, use the admithw command to programmatically create and distribute the spare chunklets.
cli% showsys -paramSystem parameters from configured settings
----Parameter----- --Value--
RawSpaceAlertFC : 0
RawSpaceAlertNL : 0
RawSpaceAlertSSD : 0
RemoteSyslog : 0
RemoteSyslogHost : 0.0.0.0
SparingAlgorithm : Unknown
pd example 6
Component --Identifier-- -------Detailed Description----------
PD Disk:32 ST3400755FC PD for cage type DCS2 in cage position 2:0:0 is missing from the firmware database
156 Troubleshooting
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