5 calculators in this category
- RAID Capacity CalculatorSNIA Common RAID Disk Data Format; IEC 80000-13 binary prefixesEnter your drive count, drive size and RAID level and this calculator returns the capacity you can actually write to — in…
- RAID IOPS & Write Penalty CalculatorSNIA storage performance terminologyAn application asking for 5,000 IOPS does not put 5,000 operations on your disks. Every small write to a parity RAID set costs…
- TB to TiB Storage Capacity CalculatorIEC 80000-13 binary prefixesA 1 TB drive is not faulty when your operating system reports 931 GB. The manufacturer counted in powers of ten, where a…
- Data Compression Ratio CalculatorSNIA data reduction ratio conventionsCompression is quoted two ways and the two do not behave alike. A ratio of 4:1 sounds twice as good as 2:1, but it saves 75% of…
- Backup Window CalculatorBackup window planning arithmeticA backup window is the stretch of time when a backup can run without hurting production, and the only question that matters is…
Which one do you need?
- RAID Capacity Calculator
- Calculate usable capacity, parity overhead, fault tolerance and cost per usable TB for RAID 0, 1, 5, 6, 10, 50 and 60 arrays, in both TB and TiB.
- RAID IOPS & Write Penalty Calculator
- Convert front-end IOPS and a read/write mix into back-end disk IOPS after the RAID write penalty, then size the drive count and check achievable throughput.
- TB to TiB Storage Capacity Calculator
- Convert between TB, TiB, GB and GiB and see why a 1 TB drive shows as 931 GB in your operating system. Exact byte counts for every storage unit.
- Data Compression Ratio Calculator
- Convert between compression ratio, space savings percentage and compressed size, and see the effective logical capacity a reduction ratio buys you.
- Backup Window Calculator
- Check whether a full or incremental backup fits the nightly window, find the throughput needed to make it fit, and estimate the full restore time.
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