Como você remove o FC LUNS do CentOS 6?

Question

Temos um Qlog2560 HBA Qlogic em execução em um servidor Centos 6. Estou precisando remover remotamente os LUNS conectados. Eu não tenho nenhum software do qlogic instalado no dispositivo. Seus são 2 LUNS anexados a uma SAN P200 G3 e não consigo encontrar nada documentado para este sistema operacional sobre como removê-los.

[root@server class]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: AMCC     Model: 9650SE-8LP DISK  Rev: 4.10
  Type:   Direct-Access                    ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: WDC WD1003FBYX-0 Rev: 01.0
  Type:   Direct-Access                    ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: WDC WD1003FBYX-0 Rev: 01.0
  Type:   Direct-Access                    ANSI SCSI revision: 05
Host: scsi3 Channel: 00 Id: 00 Lun: 00
  Vendor: Slimtype Model: DVD A  DL8A4SH   Rev: HP54
  Type:   CD-ROM                           ANSI SCSI revision: 05
Host: scsi7 Channel: 00 Id: 00 Lun: 00
  Vendor: HP       Model: P2000 G3 FC      Rev: T230
  Type:   Direct-Access                    ANSI SCSI revision: 05
Host: scsi7 Channel: 00 Id: 00 Lun: 01
  Vendor: HP       Model: P2000 G3 FC      Rev: T230
  Type:   Direct-Access                    ANSI SCSI revision: 05
Host: scsi5 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: ST3000DM001-1CH1 Rev: CC26
  Type:   Direct-Access                    ANSI SCSI revision: 05


[root@server ~]# lsmod | grep ql
qla2xxx_conf          335368  1 
qla2xxx              1023916  0 
intermodule            37892  2 qla2xxx_conf,qla2xxx


[root@server ~]# cat /proc/scsi/qla2xxx/7 
QLogic PCI to Fibre Channel Host Adapter for QLE2560:
        Firmware version 4.06.03 , Driver version 8.02.23-fo
BIOS version 3.13
FCODE version 3.19
EFI version 2.24
Flash FW version 5.07.00 8080
ISP: ISP2532, Serial# BFD1238D93292
Request Queue = 0x63a600000, Response Queue = 0x63bff0000
Request Queue count = 4096, Response Queue count = 512
Total number of active commands = 0
Total number of interrupts = 174363060
    Device queue depth = 0x20
Number of free request entries = 1456
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
Number of reqs in failover_q= 0
Host adapter:loop state = <READY>, flags = 0x185a43
Dpc flags = 0x0
MBX flags = 0x0
Link down Timeout = 030
Port down retry = 030
Login retry count = 030
Commands retried with dropped frame(s) = 0
Product ID = 0000 0000 0000 0000


SCSI Device Information:
scsi-qla0-adapter-node=20000024ff0caf40;
scsi-qla0-adapter-port=21000024ff0caf40;
scsi-qla0-target-0=217000c0ff144101;

FC Port Information:
scsi-qla0-port-0=208000c0ff144101:217000c0ff144101:010000:81;
scsi-qla0-port-1=208000c0ff144101:257000c0ff144101:010100:82;
scsi-qla0-port-2=5001438012098edf:5001438012098ede:010200:1;
scsi-qla0-port-3=50014380120999bd:50014380120999bc:010300:2;
scsi-qla0-port-4=5001438012098e8b:5001438012098e8a:010400:83;

SCSI LUN Information:
(Id:Lun)  * - indicates lun is not registered with the OS.
( 0: 0): Total reqs 6258578, Pending reqs 0, flags 0x2, Dflags 0x0, 0:0:81 00
( 0: 1): Total reqs 6825301, Pending reqs 0, flags 0x2, Dflags 0x0, 0:0:81 00

    

Answer 1

Consulte a Seção 24.4 Removendo um dispositivo de armazenamento do Guia de administração de armazenamento da Red Hat.

    

Answer 2

Você pode mostrar a saída de df -h ?

Em geral:

umount the volume's mount point

# Assuming Multipath, get the drives associated with the LUN [ie sdc, sdj etc]
multipath -l <mpathalias>

# Flush the multipath list
multipath -F

# Verify that the above drives are no longer used by ANYTHING
# Do this for EACH drive
lsof /dev/sdX    #Where X = drive designation above

# Delete the drives.
# Do this for EACH drive
echo 1 > /sys/block/sdX/device/delete  #Where X = drive designation above

# Unmap the volume on the SAN

# Re-scan then list multipath to make sure it doesn’t find the volume
# you just removed
multipath
multipath -l