Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!


What's special about Enterprise HDDs and Datacenter SSDs?
New on LowEndTalk? Please Register and read our Community Rules.

All new Registrations are manually reviewed and approved, so a short delay after registration may occur before your account becomes active.

What's special about Enterprise HDDs and Datacenter SSDs?

Is there a difference between those and normal SSDs/HDDs or is it a marketing trick

Comments

  • They've got higher privacy quotient.

  • Enterprise HDD/SDDs are more suitable for 24/7/365 use, and they are less likely to fail. They also usually come with longer warranty.

    Thanked by 1Ikoula
  • PrivacyInfinity said: Is there a difference between those and normal SSDs/HDDs or is it a marketing trick

    read https://www.percona.com/blog/2018/07/18/why-consumer-ssd-reviews-are-useless-for-database-performance-use-case/

  • deankdeank Member, Troll

    For HDDs, it's simply longer warranty and better quality checks.

    For SSDs, however, it's different. Enterprise SSD chips must have high write endurance or companies will lose their money over warranties.

  • edited October 2018

    @dedipromo said:
    Enterprise HDD/SDDs are more suitable for 24/7/365 use, and they are less likely to fail. They also usually come with longer warranty.

    How many power on hours can a consumer HDD reasonably last? Not writing 24/7, or doing anything resource intensive 99% of the time.

  • psylencedpsylenced Member
    edited October 2018

    Enterprise SSD will usually quote the DWPD stat. Which is number of drive writes per day.

    A drive quoted at 10 dpwd means that for example, using a 1tb ssd, you can write 10tb of data every day for it's entire warranty period (a number of years) and it should be able to handle it without wear/errors.

    Consumer SSDs will often be really low such as 0.3 dwpd.

    An example is listed on the drives here:
    https://business.toshiba-memory.com/en-apac/product/storage-products/enterprise-ssd.html

  • IonSwitch_StanIonSwitch_Stan Member, Host Rep
    edited October 2018

    As @paylenced mentions, endurance and reliability are generally a huge factor.

    SSD's are a bit different from Harddrives in more forms than just that they trade spinning platters for memory cells.

    Many SSD's (not all, specifically SandForce) actually have a small amount of volatile memory in the form of onboard DRAM. This means even though your data is written to the SSD, its actually only in ram on the SSD, and needs to be copied to the non-volatile memory. If the server loses power during this time, the data that was "written" to the SSD can be lost.

    Enterprise SSD's either don't have a volatile cache, or have an onboard battery or capacitor to ensure that data gets written to disk.

    Enterprise harddrives generally have time limited error recovery (TLER) enabled. Normal consumer disks will attempt to recover data for a longer period of time than enterprise (or nas) disks. Enterprise disks are designed to be in a RAID group, or more responsible to a raid controller, and will return an error much faster if they cannot read data. Without TLER, its possible for a RAID controller to mark disks as bad when they have a read error, whereas an enterprise disk will read from another disk.

    Don't ever put data you care about on disks without TLER and on a RAID controller.

    How many power on hours can a consumer HDD reasonably last? Not writing 24/7, or doing anything resource intensive 99% of the time.

    https://www.backblaze.com/blog/hard-drive-stats-for-q1-2018/

    Backblaze sees an annualized failure rate of 0.00-2.30% (1.60% avg) over their selection of consumer disks. Their data historically has not seen meaningful rates of failure that would suggest enterprise are better off (0.1% better in terms of annual failure rates).

    The "its not designed to run 24x7" doesn't really seem accurate for consumer spinning disks.

    Thanked by 1vimalware
Sign In or Register to comment.