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RAID0 SSDs - Page 2
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RAID0 SSDs

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Comments

  • AlexBarakovAlexBarakov Patron Provider, Veteran

    @Kenshin
    Can't understand what exactly you are saying. Did you mean replacing RAID10 ssd array with RAID1 SATA drives?

  • @Alex_LiquidHost said: Can't understand what exactly you are saying. Did you mean replacing RAID10 ssd array with RAID1 SATA drives?

    Yes he means replacing raid10 sata array with raid1 ssd.

  • KenshinKenshin Member
    edited October 2012

    @Alex_LiquidHost said: Can't understand what exactly you are saying. Did you mean replacing RAID10 ssd array with RAID1 SATA drives?

    Nope.

    4x 240GB SSD RAID0 + 2x 1TB SATA RAID1 (rsync + MySQL Replication) = 1200
    8x 240GB SSD RAID10 = 1920

    Save $720, achieve speed of 4x SSD RAID0, working backup that can be switched over in event of SSD failure thus reducing turn around time.

    RAID10 will protect you against 1 drive failure per pair but costs double. Not to mention you need a RAID card that can handle 8 drives at full speed (assuming Intel 520s can perform at 400-500mb/sec).

    Of course there'll be people who don't believe in this and rather go RAID10 route, which is perfectly fine as well. My point is that if you know what you're doing, you can save money and achieve the same (or better) level of performance, because effectively the SATA drives aren't just your failsafe in event of failure, they can also be your hourly backup as well thus killing 2 birds with 1 stone.

  • CNJeremyCNJeremy Member
    edited October 2012

    Looks like Samsung has released two enterprise class SSD drives.

    http://www.theinquirer.net/inquirer/news/2221325/samsung-launches-two-enterprise-ssds

    The SM843 is aimed primarily at the datacentre market, with Samsung touting its ability to write up to 800TB during its life cycle. The firm said this represents a 1,600 percent improvement over its last generation device, which offered 60TB lifetime data writing.

    It can also achieve 11,000 IOPS, while latency has been reduced by 80 per cent, according to the firm. The SM843 can also read data sequentially at up to 520MB/s and write it at up to 420MB/s.

    The SM1625 is designed for use in external storage systems for high availability environments, offering 41,000 IOPS and the ability to write data sequentially at 740MB/s and read at 848MB/s when using both ports. It is available in capacities of 100GB, 200GB, 400GB and 800GB.

  • The Adaptec Series 7 cards that are coming out will be nice for SSD usage -- right now, you can pretty easily max out any of their current series (for iops) with decent SSD drives. Maybe someone familiar with LSI can say if that's true of their cards also.

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