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RedHat v6.2 on PE R510 with 20 TB non-LVM
I'm installing RedHat v6.2 x64 on a PowerEdge R510 fully proprogated with 2 TB SAS drives (20TB total via RAID 5) with a PERC 700 controller card.
In v6.2, we're limited to only 8TB...which I assume is a bug in RedHat v6.2. When I installed v6.3 on Dell's advice I could go up to 16 TB. I would like to partition the drive in a 4TB, 16TB, and 128GB swap using (per my DBA's request) ext3. I'm using UEFI and installing via the lifecycle controller.
The system has kernel panics when installing in non-LVM. Is this a bug in the Dell PERC driver?
Any idea's how I can use ext3/4 for a 4TB and 16TB partition (ideally 20TB)?
DELL-Jonathan S
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November 14th, 2012 14:00
Hi jwulf,
RHEL 6 should work fine with UEFI booting and the GPT disk partitioning scheme, with or without LVM, and this does not seem to me like a problem with the PERC driver (which is written by LSI and included in the kernel shipped with RHEL). Since you don't want to use LVM, I assume the 4TB is a single system partition, and the 16TB partition is for the database. All the drivers (PERC, NIC, etc) should be included in the standard RHEL media and present by default, so what I would suggest is installing RHEL directly from its installation media rather than using the lifecycle controller. Have you already tried this? Did it do any better? For ext3 you can go up to 16TB for a single partition, but with ext4 you can actually go up to 1 exabyte.
jwulf
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November 14th, 2012 15:00
Redhat will not allow you to go past 16 TB during installation. While ext4 will go up to 1 EB, Redhat only supports 16 TB. They may have limited this in their install utility intentionally…I’m not sure.
See page 3, paragraph beginning with "Currently" for reference on the 16TB ext4 limit.
www.redhat.com/.../RHEL6_FileSystem_WP_5677547_0311_dm_web.pdf
See KB article for v6.0-v6.2 "8 TB" partition limitation and fix in v6.3.
access.redhat.com/.../67464
In the UEFI boot menu, I selected the Dell DVD drive connected to the back USB. It did not boot up. When I go through the life cycle controller and select an operating system or change it from UEFI to BIOS, the DVD is able to boot up the Redhat OS installation DVD.
DELL-Jonathan S
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November 16th, 2012 17:00
Thanks for the clarification jwulf. I can't seem to find any other information about a known issue pertaining to this, so I'm wondering if you might be able to complete the install creating only the 4TB partition, and then create and format the 16TB volume on first boot?