3Ware 9000 Series Release Notes page 8

not be capable of protecting the data inside the cache memory when the system is
interrupted by power failure or unclean shutdown.
• If the CLI is used to disable the BBU (e.g. tw_cli /c0/bbu disable) the CLI and 3DM
2 will show the BBU as 'NOT PRESENT', even though it is present and just
disabled. To determine if the BBU is truly not present and not just disabled, you
can use the CLI to enable the BBU (e.g. tw_cli /c0/bbu enable), then check the
status of the BBU. If the BBU was simply disabled, it will now show that it is
available.
Compatibility Issues:
• HP Proliant ML570 G2 computer system
o HP BIOS P32 (02/01/2003) <- original
HP BIOS P32 (09/15/2004) <- latest Please upgrade to the latest BIOS
o With a 3ware 9500 board installed, if there are any units created, the system
won't boot to the local drive. The two workarounds are:
1. Reduce other device's usage of shadow memory (sound, video, etc).
2. Press Alt-B when the 3ware BIOS is displayed on the screen during
3. Check the HP documentation to see if it is possible to change the
• With multiple controllers, the controller ID is switched with Win 2k3/64 and
WinXP/32 with the 3ware BIOS vs. 3DM 2 / CLI.
o Dell PowerEdge 2600
o Tyan K8S Pro 2882 with the latest AMI Bios version 2.04
• Multiple controller are not supported on the following system:
o Dell PowerEdge 2600
• "LUN Larger than currently supported" when loading 9.0ES 64-bit Xeon
o This is a kernel bug which happens on 64-bit machines when the first LUN
is over 1TB then the remaining logical units report errors.
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=127434
• Fedora Core 3 kernel bug
o System hang and kernel panic under FC3 x86_64 (we need more
explanations here.)
This is a kernel bug that is fixed in 2.6.10 related to IO retries:
http://www.spinics.net/lists/raid/msg06559.html
Arrays over 4TB and SuSE 9.1
Using the 9500S-12 controller and 400GB hard drives, users can create an array over 4TB.
Ext2 and ext3 file systems do not support more than 4TB, while the XFS file system does.
We have tested the XFS file system with the kernel 2.6.8.1 and found it to work
successfully. We were able to mount a partition larger than 4TB.
Arrays over 2TB and Windows
720-0123-00 Rev. A
Consult the HP documentation for how to do this.
boot to disable 9500S BIOS from loading.
boot sequence from the system BIOS.
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