ZFS vs UFS read/write patterns

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Red pixels mean write operations, green pixels mean read operations. One pixel represents approx 10700 blocks or 5,3 MB. The disks have 140GB each.
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Both hosts are running MySQL InnoDB databases and the application updates BOTH in the exact same manner (same INSERTs, SELECTs and UPDATEs).
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The ZFS host does a "DELETE ..... WHERE ..." at 22:30 (10:30pm), the UFS host does that at 01:30am. Approx 3 million columns are deleted by these operations per database.

Category:

Science & Technology

Tags:

• zfs
• ufs
• comparison
• dtrace
• Solaris