HP 6400/8400 HP StorageWorks Enterprise Virtual Array Updating Product Softwar - Page 35

VMware, Xen Citrix, Services\Disk\TimeOutValue

Page 35 highlights

set sd:sd_io_time = 60 set ssd:ssd_io_time = 60 For QLogic, edit the /kernel/drv/qla2300.conf file and change the hbax-link-down-timeout value to 60 as follows: hba0-link-down-timeout=60; For Emulex, edit the /kernel/drv/lpfc.conf file and change the linkdown-tmo value to 60 as follows: linkdown-tmo=60; VMware VMware ESX (Hypervisor) does not time I/O for a guest operating system. Thus the SCSI timeouts on commands issued by each VMware guest (Linux, Windows, Solaris) are those provided for these systems. NOTE: For the Microsoft Windows guest operating system, set the windows SCSI timeout registry to 60 seconds as follows: 1. In the windows registry, find HKEY_LOCAL_MACHINE\System\CurrentControlSet\ Services\Disk\TimeOutValue 2. Set this value to 60 decimal (3Ch). 3. If the registry entry does not exist, you must create it. See your Windows documentation for in- structions. The ESX layer (VMFS, the VMware filesystem) controls timeouts of VMFS I/O. These values may vary from ESX release to release. Xen Citrix For Xen Citrix, except for NFS SR timeouts, because Citrix XenServer 5.0 mounts using software with non-default timeout values, use the values described in "Linux" on page 32. To check or set Xen Citrix parameters, use the set_parm executable found in the /opt/hp/ directory. When executed, the options to change timeout values are displayed. NOTE: • The timeout values must be increased for Emulex single path (without multipath support) and QLogic single path being used in the environment. This is not only important for online upgrades but for general data integrity. • Online controller software upgrades are supported with Xen Citrix boot devices. HP StorageWorks Enterprise Virtual Array Updating Product Software Guide (XCS 09534000) 35

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set sd:sd_io_time = 60
set ssd:ssd_io_time = 60
For QLogic, edit the
/kernel/drv/qla2300.conf
file and change the
hbax-link-down-timeout
value to 60 as follows:
hba0-link-down-timeout=60;
For Emulex, edit the
/kernel/drv/lpfc.conf
file and change the
linkdown-tmo
value to 60
as follows:
linkdown-tmo=60;
VMware
VMware ESX (Hypervisor) does not time I/O for a guest operating system. Thus the SCSI timeouts on
commands issued by each VMware guest (Linux, Windows, Solaris) are those provided for these
systems.
NOTE:
For the Microsoft Windows guest operating system, set the windows SCSI timeout registry to 60
seconds as follows:
1.
In the windows registry, find
HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Services\Disk\TimeOutValue
2.
Set this value to 60 decimal (3Ch).
3.
If the registry entry does not exist, you must create it. See your Windows documentation for in-
structions.
The ESX layer (VMFS, the VMware filesystem) controls timeouts of VMFS I/O. These values may vary
from ESX release to release.
Xen Citrix
For Xen Citrix, except for NFS SR timeouts, because Citrix XenServer 5.0 mounts using software with
non-default timeout values, use the values described in
Linux
on page 32.
To check or set Xen Citrix parameters, use the
set_parm
executable found in the
/opt/hp/
<driver-specific>
directory. When executed, the options to change timeout values are displayed.
NOTE:
The timeout values must be increased for Emulex single path (without multipath support) and
QLogic single path being used in the environment. This is not only important for online upgrades
but for general data integrity.
Online controller software upgrades are supported with Xen Citrix boot devices.
HP StorageWorks Enterprise Virtual Array Updating Product Software Guide (XCS 09534000)
35