lefttx.blogg.se - Softraid 5 vs

#Softraid 5 vs software
#Softraid 5 vs free
#Softraid 5 vs windows

In a Windows world, hardware RAID is big due to the historically abysmal way windows manages disks and redundancy.

#Softraid 5 vs software

In the Linux world, software raid and resilient filesystems lead the pack. Just make sure to tag the post with the flair and give a little background info/context. On Fridays we'll allow posts that don't normally fit in the usual data-hoarding theme, including posts that would usually be removed by rule 4: “No memes or 'look at this '”

We are not your personal archival army.

No unapproved sale threads, advertisement posts, or giveaways.

#Softraid 5 vs free

No memes or 'look at this old storage medium/ connection speed/purchase' (except on Free Post Fridays).

Search the Internet, this subreddit and our wiki before posting.

And we're trying really hard not to forget.ģ.3v Pin Reset Directions :D / Alt Imgur link Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Timetm). government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Among us are represented the various reasons to keep data - legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. Unfortunately, there is no shortage of poorly-programmed applications that make small reads or writes, negating any advantage or a stripe.We are digital librarians. But writing (for example) 1MB of data means that all the drives get a share, and thus will handle part of the data in tandem, providing far higher performance.

Programs that write data which is smaller than the stripe size will not see an improvement from striping, since a single drive within the stripe has to handle such requests.įor example, writing 4K, 8K, 23K of data to a RAID-0 volume that has a 32k stripe size means that the data will just land on one drive- it’s smaller than the stripe size (even if the data straddles two drives, the advantage is small). In most cases, a 32K or 64K stripe size is a good choice (use 64K or larger for SSDs). The stripe size is the size of chunk that each drive in the stripe handles.

RAID-5 vs 3X RAID-0 stripe vs 4X RAID-0 stripe (SoftRAID 5 beta) Stripe size The red/green lower lines are a RAID-5 (striping with parity).

The middle pair of lines is a 3-drive RAID-0 stripe. Shown below, the highest pair of lines is a 4-drive RAID-0 stripe. For example, performance with two drives can be expected to be about twice that of a single drive, for “large” data transfers. ScalingĪ RAID-0 stripe is said to “scale” if the sustained transfer speed for N drives is N times the speed of a single drive. RAID-5 is an attractive alternative to RAID-0 striping, because in essence it is a RAID-0 stripe (with one less drive) along with fault tolerance (capacity of one drive used for parity data). Instead of a mess of 2/3/4 individual volumes, there is one larger and much faster single volume.

Presents multiple drives as a single volume on the desktop.

Increased capacity with two drives the capacity is doubled, with four drives the capacity is quadrupled, etc.

The increase is not exact, but it’s very close.

Greatly increased performance using two drives doubles performance, using four drives quadruples it, etc.

RAID-0 stripe 2 or more drives, one volume, one icon