Storage Calculators
20 free storage calculators in Linux.
- Disk IOPS CalculatorCalculate achievable disk IOPS from rotational speed, seek time and queue depth.
- Disk Queue Length CalculatorCalculate average disk queue length from IOPS and service time using queuing theory.
- Disk Throughput CalculatorCalculate sequential read/write throughput in MB/s from block size and IOPS.
- Filesystem Cache CalculatorEstimate page cache size needed to cache a working set of files in RAM.
- HDD Failure Probability CalculatorEstimate annual hard drive failure probability from AFR and fleet size.
- LVM LV Size CalculatorCalculate logical volume size allocation from available volume group extents.
- LVM PV Size CalculatorCalculate LVM physical volume size and metadata overhead for a given block device.
- LVM Snapshot Size CalculatorSize an LVM snapshot volume based on expected change rate and snapshot lifetime.
- LVM VG Capacity CalculatorCalculate total volume group capacity from combined physical volume extents.
- NAS Capacity CalculatorCalculate usable NAS capacity after RAID redundancy and filesystem overhead.
- RAID 0 Capacity CalculatorCalculate total usable capacity and performance of a RAID 0 striped array.
- RAID 1 Capacity CalculatorCalculate usable capacity of a RAID 1 mirrored array from disk count and size.
- RAID 10 Capacity CalculatorCalculate usable capacity of a RAID 10 striped-mirror array from disk count and size.
- RAID 5 Capacity CalculatorCalculate usable capacity of a RAID 5 array accounting for single-disk parity.
- RAID 6 Capacity CalculatorCalculate usable capacity of a RAID 6 array accounting for dual-disk parity.
- RAID Performance CalculatorEstimate combined read and write IOPS across a RAID array based on level and disk count.
- SAN Capacity CalculatorCalculate usable SAN capacity after RAID overhead, thin provisioning and reserved space.
- SSD Lifetime CalculatorEstimate SSD lifespan from TBW rating, drive capacity and daily write volume.
- Storage Expansion CalculatorCalculate additional disks or capacity needed to reach a target storage size.
- Storage Growth ForecastForecast future storage needs from historical growth rate and planning horizon.