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Posts Tagged with "raid 1"

Data and Technology

Posted on September 8th, 2006

Written by cliff

Tags
checksum, computer, database, database performance, dba, disk, disk speed, hardware raid, mysql, old thinking, oracle, parity, performance, raid, raid 1, raid 10, raid 5, raid array, raid controller, raid types, raid volumes, software raid, storage

Why Modern RAID 5 is Ideal for Oracle Databases

There is a convention of thought amongst Oracle DBA’s that databases should never be installed on disks that are configured into a RAID 5 array. The argument goes, that since Oracle accesses and writes to random points within relatively large files, the overhead of constantly calculating block-level parity on these files is substantial, resulting in [...]
Data and Technology

Posted on September 28th, 2005

Written by cliff

Tags
concatenate, data, disk, disks, mirror, mirroring, raid, raid 0, raid 1, raid 10, storage, stripe, striped, striping, systems administration, technology

What The Heck is RAID 10?

Earlier this month, a company came along and asked for a RAID 10 array. Understanding that RAID 10 is a cooler sounding way of saying RAID 1+0, I understood it as a mirror set that is striped across another mirror set. Simple enough… Just concatenate a couple of mirrors, and you’ve got RAID 10. Indeed, [...]