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Drive Volume Management
■
The Oracle Flash Accelerator F320 PCIe Card should be formatted using a label of type
EFI
(
format -e
command).
Ensure that when the EFI label is created by ZFS, the default start sector is 256, which
aligns S1 with 128k (if the block size is 512). The
vtoc
label default cylinder size is 50176
(224*224) blocks. If the block size is 512, the default Oracle Solaris Operating System
partition aligns with 512k. For example:
50176*512 = 49*512*1024
.
Specify and ensure 4k alignment: The default start sector of 34 for
EFI
labels is not a 4k
aligned value. Use the partition subcommand of the Solaris
format
command to change the
start sector to 256, or any other 128k aligned value. Note that there are 512B per sector.
■
The ZFS file system automatically aligns partitions to start on 8k boundaries when a full
disk is allocated to ZFS (recommended). If you allocate individual
EFI
partitions to a ZFS
pool, ensure the partition is 4k-aligned as discussed above. For optimal performance of ZFS
with the Oracle Flash Accelerator F320 PCIe Card, refer to the
ZFS Best Practices Guide
and the
ZFS Evil Tuning Guide
.
■
For highest performance, make sure that the system meets the physical, environmental, and
electrical specifications listed in
Related Information
■
“Preparing the Oracle F320 Flash Card for Installation” on page 23
■
Tuning ZFS When Using Flash Storage:
http://docs.oracle.com/cd/E26502_01/html/
Drive Volume Management
A volume manager can present multiple card devices as one larger volume. Use the Automatic
Storage Management (ASM) volume manager or other volume manager to concatenate multiple
flash memory domains. For example, a volume manager can be used to concatenate four 3.2 TB
domains into a single 12.8 TB volume.
Refer to the documentation for more information at
http://docs.oracle.com/cd/B28359_01/
.
Update Your System to the Latest Software Release
It is highly recommended that you update your system to the latest software release before
you use the system. Software releases often include bug fixes, and updating ensures that your
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Oracle Flash Accelerator F320 PCIe Card User Guide • July 2016
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