helped a lot to decide on how to setup my new NAS which im migratting from. This number should be reasonably close to the Minimum free space - the value is calculated as percentage of the ZFS usable storage capacity. To perform calculation click Submit. Even if you use RAIDZ2 or RAID6, regular scrubs are important. 45Drives - Storage Solutions by Storage Experts . Note: 1 TB = 1000 GB = 1000000000000 B and (adsbygoogle = window.adsbygoogle || []).push({}). in both tebibytes (TiB) and terabytes (TB). Great job. Number of RAID groups - the number of top-level vdevs in the pool. It is primarily usedon Linux (http://www.zfsonlinux.org) and by open source NAS systems such as FreeNAS (http://www.freenas.org) and NAS4Free (http://www.nas4free.org). File / Disk Size Converter [3] ZFS RAIDZ stripe width, or: How I Learned to Stop Worrying and Love RAIDZ It would be great to incorporate this into FreeNAS software as well once you are done. Different RAID-Z types use a different number of hard drives. This calculator only applies to QNAP Enterprise ZFS NAS.

As we use find ourselves performing redundant calculations where we can't find a tool online to do so, we'll continue to add them here. Many home NAS builders use RAID-6 (RAID-Z2) for their builds, because of the extra redundancy. This RAID calculator computes array characteristics given the disk capacity, the number of disks, and the array type. RAID Usable Capacity Calculator - This RAID calculator provides a more accurate measure of capacity when provided drive size, the number of drives and the RAID level to be used. Zpool storage capacity - calculated as the difference between the total raw storage capacity and the loss for drive partitioning Perfect for helping me deciding my new build. As QES takes up storage space (13GB per system drive, totally 4 system drives), the actual usable storage capacity will be less than the calculated result. I've developed a JS web app to calculate the exact usable space and the reliability specially for the ZFS RAID types. See also: number of RAID groups (if your storage system consists of more than one RAID group of the same configuration). Love it. Register for the iXsystems Community to get an ad-free experience and exclusive discounts in our eBay Store. For example you can put only one drive and select a mirror RAID (even if the app gives to you the minimum number of drives for the chosen RAID This RAID calculator was created by ReclaiMe Team of www.ReclaiMe.com.

The purpose of the spreadsheet is to compare 1:1 the potential size of your pool if you are planning RAIDZ1 or RAIDZ2 (for example).

This is an attempt at fixing the "download" link, which seems to be broken. [4]. If you find this useful, share the calculator! I plan to run raid 10 or the zfs equivalent. RAID Types Overview marked by the manufacturers. RAID Performance Calculator Single drive cost - monetary cost/price of a single drive; used to calculate the Total cost and the Cost per TiB. Notes: RAIDZ Capacity Calculator - Calculate the simple capacity for RAIDZ, RAIDZ2 and RAIDZ3 by providing the number of drives, drive capacity and ZFS RAID level. 1 TiB = 1024 GiB.

SIZE value reported by the zpool list command.

DWPD, TBW, PBW, GB/day Calculator.

Total raw storage capacity - the sum of physical size of all drives in the pool. Remember that RAID is not perfect. If they are permanent, the RAID system (ZFS/md/raid card/whatever) can rebuild the data from parity. Before implementing Enterprise ZFS NAS, use this calculator to estimate the total usable storage capacity and the number of drives you need. Disclaimer | Comments, questions, problems? [1,2], % free space limit - recommended free pool space required to ensure best performance. Updates included in v7: added an open office version compatible with MacOS RAID-Z1 (Single parity with variable stripe width). Slop space allocation - 1/32 of the capacity of the pool or at least 128 MiB, but never more than half the pool size. Practical usable storage capacity - calculated as the difference between the ZFS usable storage capacity and the minimum free space. ZFS is a modern open-sourcefile system with advanced features to improve reliability. Very useful calculator!

If this happens, we have ReclaiMe Free RAID Recovery software at the ready.

Different RAID-Z types use a different number of hard drives. ZFS Storage Overhead This makes sense because a double drive failure is not something unheard of, especially during rebuilds where all …

See also: My hardware threads: How to measure drives spin-up current | How to build a PCIe bracket for a standard SSD that powers it too Members' threads: Terminology and … now going for a raidz1 for 5x2TB drives. This number should be reasonably close to the sum of the USED and AVAIL values reported by the zfs list command. This makes sense because a double drive failure is not something unheard of, especially during rebuilds where all … my older one is 2X2 mirror. All of these resources will be helpful when planning your next RAID array. ZFS can handle RAID without requiring any extra software or hardware.

Slop space allocation - see the Inputs section above for description.

New version available now. There is comprehensive RAID information available from TechTarget and Wikipedia. RAIDZ Capacity Calculator - Calculate the simple capacity for RAIDZ, RAIDZ2 and RAIDZ3 by providing the number of drives, drive capacity and ZFS RAID level. In other words - "Your mileage may vary".

This number should be reasonably close to the sum of the USED and AVAIL values reported by the zfs list command. RAID-Z is actually a variation of RAID-5.

RAID Types Overview, Information Sources:

ZFS and RAIDZ are better than traditional RAID in almost all respects, except when it comes to a catastrophic failure when your ZFS pool refuses to mount. Hi, i have 12 2tb sata drives as well as 2 perc h700’s with 1gig of cache available for a zfs build. Note: 1 TB = 1000 GB and Provide the following parameters: the RAID type, the disk capacity in GB, the number of disks drives per RAID group and the