L-2: Install errors are occurring after an attempt was made to install the driver from
the appropriate rpm file
Verify the version of RHEL or SLES you are using. The Micron driver supports either
RHEL 5.5 and later or SLES 11 and later. Run
uname –a
to check the kernel version. It
should be 2.6.25 or later to install the driver. If your operating system or kernel version
is earlier, upgrade to the latest Micron-supported Linux operating system release and
re-install the driver.
L-3: Performance data using iostat is unavailable
The Linux driver contains an internal parameter that disables support for iostat. To ena-
ble iostat support:
1. Download the latest support pack. The driver name is
mtip32xx.
Run
Ismod | grep mti*
to determine the name of the driver (referenced as <driv-
er_name> in the instructions below).
2. Log in as root.
Root access is required. If you do not have root access, enable access:
a. Enter the following command:
/lib/modules/` uname –r` /extra/<driver_name>/<driver_name>.ko
b. Run
chmod 777<driver_name>.ko
to adjust write permissions.
3. Install the latest Linux driver from the support pack following the instructions in
this guide. After installation, follow these steps:
a. Verify the driver name following step 1 in this section.
b. Verify that
/dev/rssda
appears when
fdisk –|
is run.
4. Uninstall the driver and reinstall the driver with stats flag enabled:
a. Enter the following command:
modprobe –r <driver_name>
b.
insmod /lib/modules/`uname –r` /extra/<driver_name>/<driver_name>.ko
stats=1
5. Run some I/O on the drive using any I/O stress tool such as FIO or Vdbench. Dur-
ing this time, run one of the following commands:
•
cat /proc/diskstat
or
•
cat /sys/block/rssda/stat
6. Verify the diskstat counts for rssd or stat output are being populated.
L-4: XenServer installation script displays warning message
When trying to install the Linux driver in XenServer 6.1 using the install.sh script for a
second time (after installing the driver using install.sh and removing the XenServer
RPMs mtip32xx-modules-xen and mtip32xx-modules-kdump), the following warning
message appears:
Warning: 'Micron mtip32xx driver' is already installed
This is expected behavior. The install.sh script originates from the XenServer host; it is
not a file maintained or updated by Micron.
L-5: In RHEL 5.x, the 16th partition (/dev/rssda16) is inaccessible because the driver
supports 15 partitions only
By design in RHEL 5.x, the kernel supports 16 minor devices, which includes the entire
disk plus 15 partitions.
P420m/P320h HHHL PCIe SSD Installation Guide
Troubleshooting
PDF: 09005aef8497e00a
P420m_P320h_HHHL_installation_guide.pdf - Rev. V 12/14 EN
36
Micron Technology, Inc. reserves the right to change products or specifications without notice.
©
2012 Micron Technology, Inc. All rights reserved.
