Package: linux-source-2.6.18
Debian Release: 4.0 Etch 2.6.18-4-amd64 #1 SMP
Package Version
ii linux-kernel-headers 2.6.18-7
Linux Kernel Headers for development
ii linux-source-2.6.18 2.6.18.dfsg.1-13etch2
Linux kernel source for version 2.6.18 with
ii module-init-tools 3.3-pre4-2
tools for managing Linux kernel modules
Here the configuration is 3PAR storage array connected to host server
via iscsi. The open-iscsi initiator version (2.0-865-12) , when I
exported 1024 devices from the SAN one cannot see the contents of
/proc/scsi/scsi as it complains "cannot allocate memory" and the file
contents is zero. A reboot doesn't resolve the issue.
# cat /proc/scsi/scsi
cat: /proc/scsi/scsi: Cannot allocate memory
# ls -al /proc/scsi/scsi
-r--r--r-- 1 root root 0 2007-09-26 12:56 /proc/scsi/scsi
Multipath and iscsiadm commands correctly show the devices.
# multipath -l
50002ac002110044dm-509 3PARdata,VV
[size=256M][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ 2:0:0:508 sdsq 135:480 [active][undef]
350002ac001920044dm-382 3PARdata,VV
[size=256M][features=1 queue_if_no_path][hwhandler=0]
# iscsiadm -m session -P 3 | more
iSCSI Transport Class version 2.0-865
iscsiadm version 2.0-865
Target: iqn.2000-05.com.3pardata:22310002ac000044
Current Portal: 10.0.0.100:3260,231
Persistent Portal: 10.0.0.100:3260,231
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface IPaddress: 10.0.0.10
Iface HWaddress: default
Iface Netdev: default
SID: 1
iSCSI Connection State: LOGGED IN
Internal iscsid Session State: NO CHANGE
************************
Negotiated iSCSI params:
************************
HeaderDigest: None
DataDigest: None
MaxRecvDataSegmentLength: 131072
MaxXmitDataSegmentLength: 65536
FirstBurstLength: 65536
MaxBurstLength: 262144
ImmediateData: No
InitialR2T: Yes
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 2 State: running
scsi2 Channel 00 Id 0 Lun: 0
Attached scsi disk sdb State: running
scsi2 Channel 00 Id 0 Lun: 1
Attached scsi disk sdd State: running
scsi2 Channel 00 Id 0 Lun: 2
Attached scsi disk sde State: running