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How to identified a I20 volume
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How to identified a I20 volume

The following document clarifies the meaning of the "I20" identification string on an "ioscan" output. HP 9000 N and L class servers offers an optional 4Si 4-Channel Ultra2 SCSI Raid adaptor (A5856A I2O RAID ). When configure and installed. the volumes recieve the identification string "I20".

For example an "ioscan -fnkC disk" will present the 4Si RAID physical volumes as:

# ioscan -fn 
 
Class        I  H/W Path        Driver         S/W State   H/W Type     Description
====================================================================================
...
ba           5  0/4             lba              CLAIMED     BUS_NEXUS    Local PCI-X Bus Adapter (122e)
slot         4  0/4/1           pci_slot         CLAIMED     SLOT         PCI Slot
escsi_ctlr   0  0/4/1/0         sasd             CLAIMED     INTERFACE    HP  PCI/PCI-X SAS MPT Adapter
                               /dev/sasd0
ext_bus      2  0/4/1/0.0.0     sasd_vbus        CLAIMED     INTERFACE    SAS Device Interface
target       9  0/4/1/0.0.0.0   tgt              CLAIMED     DEVICE       
disk         2  0/4/1/0.0.0.0.0             sdisk            CLAIMED     DEVICE       HP      IR Volume
                               /dev/dsk/c2t0d0     /dev/dsk/c2t0d0s2   /dev/rdsk/c2t0d0    /dev/rdsk/c2t0d0s2
                               /dev/dsk/c2t0d0s1   /dev/dsk/c2t0d0s3   /dev/rdsk/c2t0d0s1  /dev/rdsk/c2t0d0s3
...

To verified the configuration of the 4Si controller and it's logical and physical devices, use the "irdiag" command. For example:

# irdiag -i
Adapter Hardware Path:  0/7/0/1
 
     Device File: /dev/iop0
     Product ID: 467
     Firmware Version: U.01.06
     Number of Logical Drives Configured: 3
     Maximum Concurrent Commands Supported: 254
     Maximum Targets Supported per Channel: 16
     Number of Channels: 4
     Flush Interval: 4
     Rebuild Rate: 30
     Dram Size (Mb): 128
     Battery Pack: Present
     Battery Status: Charging Completed
     Battery Temperature: Good
     Battery Voltage: Good
# irdiag -v
******************** Internal RAID Adapter 0/7/0/1 ********************
 
PowerFail Safeguard    = ENABLED
Disk Spin Up           = AUTOMATIC
Rebuild Rate           = 30%
Firmware Version       = U.01.06
DRAM Size              = 128 MB
Device File            = /dev/iop1
Hardware Path          = 0/7/0/1
Adapter Type           = 467
Speaker                = DISABLED
Battery Pack           = CONNECTED
Battery Status         = CHARGING COMPLETED
Battery Temperature    = GOOD
Battery Voltage        = GOOD
Battery Charge Counter = 1
Configuration Saves    = 6
Firmware Downloads     = 2
Initiator ID           = 7
 
----------Channel 0----------
 
State                  = ACTIVE
Termination            = WIDE
SCSI Transfer Rate     = ULTRA-2
SCSI Devices Attached:
 
Ch   ID   Type           Capacity  Vendor/Product/Revision       Status
 
0    0    DISK           8681 MB   IBM DMVS09D HP07              HOTSPARE
0    1    DISK           8681 MB   IBM DMVS09D HP07              ONLINE
0    2    DISK           8681 MB   IBM DMVS09D HP07              ONLINE
0    3    DISK           8681 MB   IBM DMVS09D HP07              ONLINE
0    8    DISK           8681 MB   IBM DMVS09D HP07              ONLINE
0    9    DISK           8681 MB   IBM DMVS09D HP07              ONLINE
0    10   DISK           8681 MB   IBM DMVS09D HP07              ONLINE
0    11   DISK           8681 MB   IBM DMVS09D HP07              READY
0    12   DISK           8681 MB   IBM DMVS09D HP07              READY
0    13   DISK           8681 MB   IBM DMVS09D HP07              READY
0    14   SES            N/A       HP A5272A HP04
 
----------Channel 1----------
 
State                  = ACTIVE
Termination            = WIDE
SCSI Transfer Rate     = ULTRA-2
SCSI Devices Attached:
 
None Detected
 
----------Channel 2----------
 
State                  = ACTIVE
Termination            = WIDE
SCSI Transfer Rate     = ULTRA-2
SCSI Devices Attached:
 
None Detected
 
----------Channel 3----------
 
State                  = ACTIVE
Termination            = WIDE
SCSI Transfer Rate     = ULTRA-2
SCSI Devices Attached:
 
None Detected
 
----------------------LOGICAL DRIVES SUMMARY--------------------
LD      RAID    Size                    #Stripes        StrpSz  Drive-State
 
0       1       8682MB(8.5GB)           2               64KB    OPTIMAL
1       1       8682MB(8.5GB)           2               64KB    OPTIMAL
2       1       8682MB(8.5GB)           2               64KB    OPTIMAL
 
 
--------------------------Logical Drive 0-------------------------
 
RAID LEVEL   = 1
Size         = 8682MB (8.5GB)
StripeSize   = 64KB
Write Policy = WRTHRU
Read Policy  = ADAPTIVE
Cache Policy = Cached IO
#Stripes     = 2
State        = OPTIMAL
Spanned      = NO
#Spans       = 1
Disks in Span 0 :
Ch   ID   Type      Capacity  Vendor/Product/Revision       Status
 
0    1    DISK      8681 MB   IBM DMVS09D HP07              ONLINE
0    2    DISK      8681 MB   IBM DMVS09D HP07              ONLINE
 
--------------------------Logical Drive 1-------------------------
 
RAID LEVEL   = 1
Size         = 8682MB (8.5GB)
StripeSize   = 64KB
Write Policy = WRTHRU
Read Policy  = ADAPTIVE
Cache Policy = Cached IO
#Stripes     = 2
State        = OPTIMAL
Spanned      = NO
#Spans       = 1
Disks in Span 0 :
Ch   ID   Type      Capacity  Vendor/Product/Revision       Statu
 
0    3    DISK      8681 MB   IBM DMVS09D HP07              ONLINE
0    8    DISK      8681 MB   IBM DMVS09D HP07              ONLINE
 
--------------------------Logical Drive 2-------------------------
RAID LEVEL   = 1
Size         = 8682MB (8.5GB)
StripeSize   = 64KB
Write Policy = WRTHRU
Read Policy  = ADAPTIVE
Cache Policy = Cached IO
#Stripes     = 2
State        = OPTIMAL
Spanned      = NO
#Spans       = 1
Disks in Span 0 :
Ch   ID   Type      Capacity  Vendor/Product/Revision       Status
 
0    9    DISK      8681 MB   IBM DMVS09D HP07              ONLINE
0    10   DISK      8681 MB   IBM DMVS09D HP07              ONLINE
 
-----------------SCSI Device 0:0----------------
 
Channel         = 0
Target          = 0
Block Size      = 512 Bytes
Device Type     = DISK
Capacity        = 8681 MB
Vendor ID       = IBM
Product ID      = DMVS09D
Revision        = HP07
SCSI Standard   = SCSI-3
Media Errors    = 0
Other Errors    = 0
State           = HOTSPARE
Tag Depth       = 0
SyncNegotiation = 0
 
-----------------SCSI Device 0:1----------------
 
Channel         = 0
Target          = 1
Block Size      = 512 Bytes
Device Type     = DISK
Capacity        = 8681 MB
Vendor ID       = IBM
Product ID      = DMVS09D
Revision        = HP07
SCSI Standard   = SCSI-3
Media Errors    = 0
Other Errors    = 0
State           = ONLINE
Tag Depth       = 0
SyncNegotiation = 0
Part of Logical Drive 0
 
-----------------SCSI Device 0:2----------------
 
Channel         = 0
Target          = 2
Block Size      = 512 Bytes
Device Type     = DISK
Capacity        = 8681 MB
Vendor ID       = IBM
Product ID      = DMVS09D
Revision        = HP07
SCSI Standard   = SCSI-3
Media Errors    = 0
Other Errors    = 0
State           = ONLINE
Tag Depth       = 0
SyncNegotiation = 0
Part of Logical Drive 0
         .
         . 
         .
-----------------SCSI Device 0:14----------------
 
Channel         = 0
Target          = 14
Device Type     = SES
Vendor ID       = HP
Product ID      = A5272A
Revision        = HP04
SCSI Standard   = SCSI-2
Tag Depth       = 0
SyncNegotiation = 0
 
-----------Enclosure at Channel 0:Target 14-------------
 
Enclosure is in SES mode
 
ENCLOSURE CONFIGURATION
 
Enclosure Vendor ID                   = HP
Product ID                            = A5272A
Product Revision Level                = HP04
Vendor Specific Enclosure Information = Ultra2 SCSI High Availability Storage
System 1010D
 
Monitored elements:        Up to 10 Disk Device
        Up to 2 Power Supply
        Up to 2 Fan
        Up to 4 Temperature
        Up to 1 Audible Alarm
        Up to 2 Enclosure Services Controller
        Up to 2 Port Transceiver
        Up to 6 Voltage Sensor
 
ENCLOSURE STATUS
 
Critical condition detected (see below)
 
Device 0 Okay
        SCSI TID:  0
Device 1 Okay
        SCSI TID:  8
Device 2 Okay
        SCSI TID:  1
Device 3 Ok
        SCSI TID:  9
Device 4 Okay
        SCSI TID:  2
Device 5 Ok
        SCSI TID:  10
Device 6 Okay
        SCSI TID:  3
Device 7 Okay 4
        SCSI TID:  11
Device 8 Okay 2
        SCSI TID:  13
Device 9 Okay 6
        SCSI TID:  12
Power supply 0 Critical
        Failed LED on
Power supply 1 Okay
Cooling element 0 Okay
        Fan speed:  intermediate
Cooling element 1 Okay
        Fan speed:  intermediate
Temperature sensor 0 Okay
        Temperature = 25 Celsius
Temperature sensor 1 Okay
        Temperature = 26 Celsius
Temperature sensor 2 Not installed
Temperature sensor 3 Not installed
Unspecified 0 Okay
Enclosure controller 0 Okay
        Active controller
Enclosure controller 1 Not installed
SCSI port/transceiver 0 Okay
SCSI port/transceiver 1 Not installed
Voltage sensor 0 Okay
        Voltage = 338 millivolts
Voltage sensor 1 Okay
        Voltage = 516 millivolts
Voltage sensor 2 Okay
        Voltage = 1224 millivolts
Voltage sensor 3 Not installed
Voltage sensor 4 Not installed
Voltage sensor 5 Not installed
         .
         .
         .
        Ch0     Ch1     Ch2     Ch3
ID
0       HSP     -       -       -
1       ONL     -       -       -
2       ONL     -       -       -
3       ONL     -       -       -
4       -       -       -       -
5       -       -       -       -
6       -       -       -       -
7       -       -       -       -
8       ONL     -       -       -
9       ONL     -       -       -
10      ONL     -       -       -
11      RDY     -       -       -
12      RDY     -       -       -
13      RDY     -       -       -
14      -       -       -       -
15      -       -       -       -
 
where RDY  = READY
      ONL  = ONLINE
      HSP  = HOTSPARE
      FAIL = FAILED
      RBLD = REBUILD
      UNKN = UNKNOWN

Reference

This page was last modified on 10 July 2010, at 23:24. This page has been accessed 1,613 times.