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Frequently Asked Questions
BIOS
 How can I tell what BIOS/firmware revision my RAID controller is currently utilizing?
Controller
Can a hotspare configured on one RAID controller rebuild a drive physically attached to a different RAID controller?
Can I mirror a RAID-5 array using a RAID card?
How can I use both the internal and external SCSI connectors on the same channel of my RAID card?
How many hard drives can my 2-channel RAID controller handle? How many per array?
What is the difference between Hardware RAID and Software RAID?
What is the difference between the I2O and mass storage settings on my RAID controller?
What does the error message "SCSI timeout" mean?
What is the difference between initialization and formatting on my RAID controller?
What settings should my RAID card have when I am configuring the machine for a cluster?
Drives
What is the difference between 68-pin and 80-pin SCSI drives and what kind does my server support?
General
What are some general SCSI troubleshooting tips?
How do I turn off the alarm on my RAID controller?
What steps can be taken if a SATA, SCSI or RAID adapter BIOS does not respond during startup?
What are the SCSI cable/bus length limitations?
Can I install a TBU on my MegaRAID controller?
Can or should I mix different speed drives (RPMs) in the same hardware raid array? Are there disadvantages to this?
What is the effect when disabling the BIOS on my SATA, SCSI or RAID hard drive controller?
What is JBOD?
Can I use different capacity drives in the same RAID array?
How can I check the status of the arrays on my RAID controller that are performing background initialization?
What is Background Initialization?
Hard Drive
Why might the rebuilding of a RAID drive fail?
What are the advantages of faster RPMs in regard to hard drives?
Not all of my drive space is recognized. Where is the rest?
Can I use drives of different SCSI technologies (U320, U160, U2, Fast) in the same RAID array?
How do you clear media errors on a RAID array's hard drive?
A disk in my hardware RAID array has failed. What should I do now?
Can I cluster the internal hard drives in my server?
How can I tell what firmware revision my hard disk is currently using?
How To
How do I configure my LSI RAID controller for clustering with the Gateway 850 SCSI Storage Enclosure?
How can I schedule consistency checks with my LSI MegaRAID RAID controller?
How can I abort Background Initialization and Check Consistency after I have started them?
RAID
What is RAID 10?
What is RAID 50?
How often should I run a consistency check or parity check on my RAID array?
Can I configure one of my RAID drives as a normal drive (not in an array)?
Can I swap out all the drives in my RAID 5 array without reloading my operating system?
Can I change the type of RAID array without having to reload the computer?
One of my RAID HDDs failed. Should I remove it from the computer or leave it installed until it is replaced?
What is the Power Console software, and what is it capable of?
What is the ESG-HSV or GEM, and why is it being detected?
Can I span a single RAID array across two RAID controllers?
What is RAID 7?
What exactly is initialization (the RAID controller is prompting to do this to my new array)?
What is the difference between RAID 10 and RAID 0+1?
How do I configure a RAID 10?
How do I configure a RAID 30?
How do I configure a RAID 50?
Can I add additional hard disks to my hardware RAID array?
Technical
What array stripe size is optimal for my operating system?
Why does only one hard disk drive show up when several are configured in a RAID array?
What basic troubleshooting steps can be taken if the server's SCSI hard drive is not detected or recognized?
When looking at my drives, I see that there are two types of errors; a media error and another error. What do these indicate?
Terminology
What does the acronym or term SAF-TE mean?
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