Oracle recommend configuring a Sun StorageTek 6140 with 15 hard disks

Hi,
How would Oracle recommend configuring a Sun StorageTek 6140 with 15 hard disks for optimal use with multiple Solaris servers running Oracle instances connected via a SAN? Should the storage array be configured as a single RAID 5 device and then LUNs created for the different servers? Or should each Oracle instance have its own dedicated hard disks?
Also might we see better performance if we used Solid State Devices for the ZFS Intent Log (ZIL) and/or L2ARC on ZFS, instead of using the UFS file system straight to the SAN?
Regards
NM

I don't think Oracle would recommended any particular way. I would consider the following, but your mileage may vary, so testing is very important.
Raid 1 (10) for logs
RAID5 for Tables
But if you have many servers access the same LUN's/VDISKS then contention may be a problem. Maybe consider consolidating all you servers to a single Oracle Server.( For protection a second server with Oracle Solaris Cluster)
ASM is the best method for managing disks and data placement. But if like to see files/directories then go for UFS with direct I/O enabled. ZFS is fantastic if you want to use Snapshot/clones/Compression, etc.. but I think UFS is faster.
As for cache, Oracle 11gR2 has support for storing objects specifically in FLASH, so look to use the Sun F20 card with 96Gb of flash.
HTH
Andy

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Hi @prateek88 ,
Welcome to the HP Forums!
It is a terrific place to find answers and tips!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
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Reconfigure it back to the original raid.
Try restoring the defaults from the bios screen.
Check for a bios update for your system. and install if applicable.
If this has not helped please contact HP support for further assistance.
Please call our technical support at 800 474 6836. If you live outside the US/Canada Region, please click the link below to get a support number for your region.
World Wide Phone Support
Best of Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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I've got StorageTek 6410 with 16 FC 15K 68GB disks connected to Sun M4000 (SPARC) with two 4Gbps Qlogic HBAs (2460). OS is Solaris 10 5/09.
I tried everything - creating RAID1, RAID5, RAID10, block size 256, 512k volumes, ZFS or UFS. I'm getting maximum average write performance of 80-160MB/s.
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Edited by: wdmadm on Aug 26, 2009 8:52 AM

Following example is RAID5 volume of 8 disks and 512 KB block size, but im getting similiar results with RAID10 volumes:
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Comparison of SSD with hard disk drives

Attribute or characteristic
Solid-state drive
Hard disk drive
Spin-up time
Instantaneous.
May take several seconds. With a large number of drives, spin-up may need to be staggered to limit total power drawn.
Random access time[45]
About 0.1 ms - many times faster than HDDs because data is accessed directly from the flash memory
Ranges from 5–10 ms due to the need to move the heads and wait for the data to rotate under the read/write head
Read latency time[46]
Generally low because the data can be read directly from any location; In applications where hard disk seeks are the limiting factor, this results in faster boot and application launch times (see Amdahl's law).[47]
Generally high since the mechanical components require additional time to get aligned
Consistent read performance[48]
Read performance does not change based on where data is stored on an SSD
If data is written in a fragmented way, reading back the data will have varying response times
Defragmentation
SSDs do not benefit from defragmentation because there is little benefit to reading data sequentially and any defragmentation process adds additional writes on the NAND flash that already have a limited cycle life.[49][50]
HDDs may require defragmentation after continued operations or erasing and writing data, especially involving large files or where the disk space becomes low. [51]
Acoustic levels
SSDs have no moving parts and make no sound
HDDs have moving parts (heads, spindle motor) and have varying levels of sound depending upon model
Mechanical reliability
A lack of moving parts virtually eliminates mechanical breakdowns
HDDs have many moving parts that are all subject to failure over time
Susceptibility toenvironmental factors[47][52][53]
No flying heads or rotating platters to fail as a result of shock, altitude, or vibration
The flying heads and rotating platters are generally susceptible to shock, altitude, and vibration
Magneticsusceptibility[citation needed]
No impact on flash memory
Magnets or magnetic surges can alter data on the media
Weight and size[52]
The weight of flash memory and the circuit board material are very light compared to HDDs
Higher performing HDDs require heavier components than laptop HDDs that are light, but not as light as SSDs
Parallel operation[citation needed]
Some flash controllers can have multiple flash chips reading and writing different data simultaneously
HDDs have multiple heads (one per platter) but they are connected, and share one positioning motor.
Write longevity
Solid state drives that use flash memory have a limited number of writes over the life of the drive.[54][55][56][57] SSDs based on DRAM do not have a limited number of writes.
Magnetic media do not have a limited number of writes.
Software encryption limitations
NAND flash memory cannot be overwritten, but has to be rewritten to previously erased blocks. If a software encryption program encrypts data already on the SSD, the overwritten data is still unsecured, unencrypted, and accessible (drive-based hardware encryption does not have this problem). Also data cannot be securely erased by overwriting the original file without special "Secure Erase" procedures built into the drive.[58]
HDDs can overwrite data directly on the drive in any particular sector.
Cost
As of October 2010, NAND flash SSDs cost about (US)$1.40–2.00 per GB
As of October 2010, HDDs cost about (US)$0.10/GB for 3.5 in and $0.20/GB for 2.5 in drives
Storage capacity
As of October 2010, SSDs come in different sizes up to 2TB but are typically 512GB or less[59]
As of October 2010, HDDs are typically 2-3TB or less
Read/write performance symmetry
Less expensive SSDs typically have write speeds significantly lower than their read speeds. Higher performing SSDs and those from particular manufacturers have a balanced read and write speed.[citation needed]
HDDs generally have symmetrical read and write speeds
Free block availability andTRIM
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Power consumption
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High performance HDDs generally require between 12-18 watts; drives designed for notebook computers are typically 2 watts.

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150Gb 7k4 rpm Raptor (reserved for Photoshop Scratch in old box)
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2 x 1Tb WD USB3 externals
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I searced on Letterbox and got a ton of posts so I thought I would just ask my question.. hopefully its not too lame.
I have 2 cameras with which I am shooting 16:9. One I am shooting with tapes the other I am using a nnovia quickcapture hard disk recorder.
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As an aside, when I use motion to zoom in
on a cut I lose the letterboxing that Final Cut
generated. How do I replace it?
Thanks!!
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Oracle recommend configuring a Sun StorageTek 6140 with 15 hard disks

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