Connecting a Backup HP StorageWorks ESL FC Library Tape Device to the Linux

[Mikhail_7]

Hi,

I'm trying to connect a backup HP StorageWorks ESL (E2400FC) Library to Redhat 2.6.9-78.0.8.EL-smp-x86_64 Linux.

The problem is that I can't see and can't create /dev/tape drives and /dev/sgx (Schr) robotic devices.

[root@g99cs4 tmp]# hp_rescan -a
Sending rescan signal to /proc/scsi/qla2xxx/0...
Sending rescan signal to /proc/scsi/qla2xxx/1...
Adding legacy tape devices to /proc/scsi/device_info
Scanning /proc/scsi/qla2xxx/0, target 2, LUN 32
Scanning /proc/scsi/qla2xxx/1, target 1, LUN 32


scsi0 00 00 00 HP HSV200 6100 RAID
scsi0 00 00 01 HP HSV200 6100 Direct-Access
scsi0 00 00 02 HP HSV200 6100 Direct-Access
scsi0 00 00 03 HP HSV200 6100 Direct-Access
scsi0 00 00 04 HP HSV200 6100 Direct-Access
scsi0 00 00 05 HP HSV200 6100 Direct-Access
scsi0 00 00 06 HP HSV200 6100 Direct-Access
scsi0 00 00 07 HP HSV200 6100 Direct-Access

is shows me only my EVA luns that was configured before, but I did not see any ESL tape devices.

FC switch, port 20, where ESL is directly connected to my HP Blade is shows me that everything is OK:

N 011400; 3;10:00:00:e0:02:22:f2:51;10:00:00:e0:02:02:f2:51; na
FC4s: FCP [HP NS E2400FC 5963]
Fabric Port Name: 20:14:00:05:1e:da:a2:f5
Permanent Port Name: 10:00:00:e0:02:22:f2:51
Port Index: 20
Share Area: No
Device Shared in Other AD: No
Redirect: No

[root@g99cs4 tmp]# cat /proc/scsi/qla2xxx/1
QLogic PCI to Fibre Channel Host Adapter for QMH2462:
Firmware version 4.04.00 [IP] [84XX] , Driver version 8.02.09-d0-rhel4.7-04
ISP: ISP2432
Request Queue = 0xff5580000, Response Queue = 0xff5560000
Request Queue count = 4096, Response Queue count = 512
Total number of active commands = 0
Total number of interrupts = 2281667
Device queue depth = 0x20
Number of free request entries = 3037
Number of mailbox timeouts = 0
Number of ISP aborts = 0
Number of loop resyncs = 0
Number of retries for empty slots = 0
Number of reqs in pending_q= 0, retry_q= 0, done_q= 0, scsi_retry_q= 0
Host adapter:loop state = , flags = 0x45e03
Dpc flags = 0x4000000
MBX flags = 0x0
Link down Timeout = 008
Port down retry = 016
Login retry count = 016
Commands retried with dropped frame(s) = 0
Product ID = 0000 0000 0000 0000


SCSI Device Information:
scsi-qla1-adapter-node=5001438005687da7;
scsi-qla1-adapter-port=5001438005687da6;
scsi-qla1-target-0=50001fe150060b58;
scsi-qla1-target-1=50001fe150060b5c;
scsi-qla1-target-2=100000e00222f251;

FC Port Information:
scsi-qla1-port-0=5001438005687e33:5001438005687e32:010100:81;
scsi-qla1-port-1=500143800568804f:500143800568804e:010200:82;
scsi-qla1-port-2=5001438005687def:5001438005687dee:010300:83;
scsi-qla1-port-3=5001438005687d37:5001438005687d36:010400:84;
scsi-qla1-port-4=5001438005688057:5001438005688056:010500:85;
scsi-qla1-port-5=50014380062febab:50014380062febaa:010700:86;
scsi-qla1-port-6=50014380062fe69b:50014380062fe69a:010800:87;
scsi-qla1-port-7=50001fe150060b50:50001fe150060b58:011100:88;
scsi-qla1-port-8=50001fe150060b50:50001fe150060b5c:011200:89;
scsi-qla1-port-9=200100e08bae9837:210100e08bae9837:011300:8a;
scsi-qla1-port-10=100000e00202f251:100000e00222f251:011400:8b;

SCSI LUN Information:
(Id:Lun) * - indicates lun is not registered with the OS.
( 0: 0): Total reqs 8, Pending reqs 0, flags 0x0, 1:0:88 00
( 0: 1): Total reqs 67786, Pending reqs 0, flags 0x0, 1:0:88 00
( 0: 2): Total reqs 67817, Pending reqs 0, flags 0x0, 1:0:88 00
( 0: 3): Total reqs 67701, Pending reqs 0, flags 0x0, 1:0:88 00
( 0: 4): Total reqs 67814, Pending reqs 0, flags 0x0, 1:0:88 00
( 0: 5): Total reqs 67701, Pending reqs 0, flags 0x0, 1:0:88 00
( 0: 6): Total reqs 1564160, Pending reqs 0, flags 0x0, 1:0:88 00
( 0: 7): Total reqs 67701, Pending reqs 0, flags 0x0, 1:0:88 00
( 1: 0): Total reqs 8, Pending reqs 0, flags 0x0, 1:0:89 00
( 1: 1): Total reqs 67701, Pending reqs 0, flags 0x0, 1:0:89 00
( 1: 2): Total reqs 67701, Pending reqs 0, flags 0x0, 1:0:89 00
( 1: 3): Total reqs 67812, Pending reqs 0, flags 0x0, 1:0:89 00
( 1: 4): Total reqs 67701, Pending reqs 0, flags 0x0, 1:0:89 00
( 1: 5): Total reqs 67804, Pending reqs 0, flags 0x0, 1:0:89 00
( 1: 6): Total reqs 67703, Pending reqs 0, flags 0x0, 1:0:89 00
( 1: 7): Total reqs 67777, Pending reqs 0, flags 0x0, 1:0:89 00
( 2: 0): Total reqs 8, Pending reqs 0, flags 0x0, 1:0:8b 00

shows me that I can see ESL WWN too:

scsi-qla1-target-2=100000e00222f251;
scsi-qla1-port-10=100000e00202f251:100000e00222f251:011400:8b;

I tried to force and to create tape and robotics devices with

/dev/MAKEDEV sg
/dev/MAKEDEV st

but it did not help me too.

I still do not see the ESL devices with
hp_rescan -a
dmesg | grep tape
cat /proc/scsi/scsi

All Linux kernel parameters looks good according with "HP OpenView Storage Data Protector Installation and Licensing Guide" "Installing Linux Clients" chapter recommendations.

I rebooted server the couple of times and it did not help me too again.

How can I troubleshoot and proceed further?
Thank you for any useful advices.

BR, Mikhail.

[Jean-Yves Picard · Accepted solution]

Hello,

Just in case:
-did you configure zoning to allow Linux to see ESL ? (obviously yes)

I haven't use an ESL in a while, I remember there is a http:// menu on ESL to configure host allowed to use robotic, did you check this also ?

Jean-Yves Picard

[Michal Kapalka (mikap)]

hi,

if you like connect a servers ( doesn't mater of OS ) you need to :

1, connect the library to the san and all servers

2, making zones between HBA ==> FC on LIB

3, use Command view for your library ==>

secure manager for permit to see the

robot ( mostly the master backup server )

and the tapes for the master and media

servers.

4, if you are able to see the SAN tapes, them you could install the backup sw.

PS : the Command View is depend on the library firmware.


mikap

[Mikhail_7]

Yes, thank you, that was the issue!
We have added my host at ESL (EML) Management Security and after that I can see it:

hp_rescan -a
Sending rescan signal to /proc/scsi/qla2xxx/0...
Sending rescan signal to /proc/scsi/qla2xxx/1...
Adding legacy tape devices to /proc/scsi/device_info
Scanning /proc/scsi/qla2xxx/0, target 1, LUN 7
Scanning /proc/scsi/qla2xxx/1, target 2, LUN 4
scsi1 00 02 00 HP EML 1396 Medium
scsi1 00 02 01 HP Ultrium L6HS Sequential-Access
scsi1 00 02 02 HP Ultrium L6HS Sequential-Access
scsi1 00 02 03 HP Ultrium L6HS Sequential-Access
scsi1 00 02 04 HP Ultrium L6HS Sequential-Access

CLOSED!!!

[Mikhail_7]

hp_rescan -a
Sending rescan signal to /proc/scsi/qla2xxx/0...
Sending rescan signal to /proc/scsi/qla2xxx/1...
Adding legacy tape devices to /proc/scsi/device_info
Scanning /proc/scsi/qla2xxx/0, target 1, LUN 7
Scanning /proc/scsi/qla2xxx/1, target 2, LUN 4

scsi1 00 02 00 HP EML 1396 Medium
scsi1 00 02 01 HP Ultrium L6HS Sequential-Access
scsi1 00 02 02 HP Ultrium L6HS Sequential-Access
scsi1 00 02 03 HP Ultrium L6HS Sequential-Access
scsi1 00 02 04 HP Ultrium L6HS Sequential-Access

[Michal Kapalka (mikap)]

hi,

if you are satisfied you could assign points.

mikap