Redhat
如何查看目前隊列深度值?
我有一個通過光纖連接到 NetApp SAN 的 OEL 伺服器。如何查看作業系統看到的隊列深度?
輸出
lspci
:05:00.0 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02) 05:00.1 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02) 08:00.0 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02) 08:00.1 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02)
輸出
lsmod
:qla2xxx 1262209 352 scsi_transport_fc 83145 1 qla2xxx scsi_mod 199641 15 be2iscsi,ib_iser,iscsi_tcp,bnx2i,libcxgbi,libiscsi2,scsi_transport_iscsi2,scsi_dh,sr_mod,sg,qla2xxx,scsi_transport_fc,libata,cciss,sd_mod
ls /sys/class/fc_host/host*
/sys/class/fc_host/host3: device issue_lip port_id port_state speed subsystem supported_speeds system_hostname uevent fabric_name node_name port_name port_type statistics supported_classes symbolic_name tgtid_bind_type /sys/class/fc_host/host4: device issue_lip port_id port_state speed subsystem supported_speeds system_hostname uevent fabric_name node_name port_name port_type statistics supported_classes symbolic_name tgtid_bind_type /sys/class/fc_host/host5: device issue_lip port_id port_state speed subsystem supported_speeds system_hostname uevent fabric_name node_name port_name port_type statistics supported_classes symbolic_name tgtid_bind_type /sys/class/fc_host/host6: device issue_lip port_id port_state speed subsystem supported_speeds system_hostname uevent fabric_name node_name port_name port_type statistics supported_classes symbolic_name tgtid_bind_type
在我的 NETAPP 上:
ls /proc/scsi/qla2xxx 1 ls /proc/scsi/qla2xxx/1 | grep -i -A1 -B1 "queue depth" Total number of interrupts = 30686605 Device queue depth = 0x20 Number of free request entries = 1842
所以 x20 是十進制的 32,這就是你要找的 #。您可以在此處閱讀有關 NETAPP 的計算:
https://library.netapp.com/ecmdocs/ECMP1196793/html/GUID-A055B184-0876-4376-9C75-35FE8C9BE832.html
編輯:其他一些查看方法:
cat /sys/module/qla2xxx/parameters/ql2xmaxqdepth
最簡單的方法是
cat /sys/block/<sdX>/device/queue_depth