{"id":34884,"date":"2019-10-31T22:01:01","date_gmt":"2019-10-31T19:01:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/upgrade-diskovoj-podsistemy-starogo-servera-s-shinoj-pcie-1-0-2-0\/"},"modified":"2019-10-31T22:01:01","modified_gmt":"2019-10-31T19:01:01","slug":"upgrade-diskovoj-podsistemy-starogo-servera-s-shinoj-pcie-1-0-2-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/administrirovanie\/upgrade-diskovoj-podsistemy-starogo-servera-s-shinoj-pcie-1-0-2-0","title":{"rendered":"Upgrade the disk subsystem of an old server from PCIe 1.0 to 2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"UpgradeWhy the topic of this article is the upgrade of the disk subsystem<\/b>It is clear that first and foremost one usually needs to:<\/p>\n

    \n
  1. Increase the RAM. This is such an obvious move that I even felt it unnecessary to write about it in the main article<\/li>\n
  2. Install additional processor(s) or replace both processors with the highest performance versions supported by the server's sockets.<\/li>\n<\/ol>\n

    \nFor old servers, both memory and processors can usually be found at bargain prices.<\/p>\n

    At a certain point, every server owner faces the question \u2014 upgrade or a new server.<\/p>\n

    Since the price of a new server can now be measured in millions of rubles, many opt for the upgrade path.<\/p>\n

    For a successful upgrade, it is very important to use compromises so that for a small cost (relative to the price of a new server) we achieve a significant performance gain.<\/p>\n

    The article includes a list of server SSDs PCI-E 2.0 x8, which have significantly decreased in price, along with RAID controllers supporting SSD caching and tested SATA III SSDs on the SATA II interface.
    \n<\/a><\/noindex>
    \nThe most obvious way to upgrade the disk subsystem is to switch from HDD to SSD. This applies to both laptops and servers. On servers, perhaps the only difference is that SSDs can be easily configured in RAID.<\/p>\n

    However, there are nuances related to the fact that there may not be SATA III ports on an old server, and then it will be necessary to replace or install a respective controller.<\/p>\n

    Of course, there are also intermediate methods.<\/p>\n

    SSD caching.<\/h2>\n

    \nOverall, this method is quite suitable for databases, 1C, or any random access. The speed does indeed increase. For large files, such as video surveillance, this method is useless.<\/p>\n

    LSI RAID controllers (IBM, DELL, CISCO, Fujitsu)<\/h3>\n

    \nStarting from the 92xx series, LSI has CacheCade 2.0 technology that allows almost any SATA SSDs to be used as cache for RAID arrays, both for reading and writing. It can even create a mirror from caching SSDs.<\/p>\n

    Brand-name controllers are becoming more complex. This is especially true for IBM. Keys and SSDs for CacheCade must be purchased from IBM at outrageous prices, so it's easier to switch to an LSI controller and buy a hardware key at a lower cost. Software keys are significantly more expensive than hardware keys.<\/p>\n

    Adaptec RAID Controllers<\/h3>\n

    \nAdaptec controllers feature MaxCache technology, which also allows SSDs to be used as cache. We are interested in the controller versions that end with the letter Q.<\/p>\n

    Q-controllers can use almost any SSD, not just the SSDs supplied by Adaptec.<\/p>\n