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hw:hdd [2025/04/01 08:32] – niziakhw:hdd [2025/04/19 09:37] (current) – niziak
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   * [[https://nascompares.com/answer/list-of-wd-cmr-and-smr-hard-drives-hdd/|List of WD CMR and SMR hard drives (HDD)]]   * [[https://nascompares.com/answer/list-of-wd-cmr-and-smr-hard-drives-hdd/|List of WD CMR and SMR hard drives (HDD)]]
   * [[https://promitel.pl/dyski-seagate-skyhawk/#1627548072476-c3389039-49e8|Dyski Seagate SkyHawk]]   * [[https://promitel.pl/dyski-seagate-skyhawk/#1627548072476-c3389039-49e8|Dyski Seagate SkyHawk]]
-  * + 
 + 
 +Rules: 
 +  * Don't buy Seagate DM (Barracuda) discs at all 
 ===== Examples ===== ===== Examples =====
  
   * Seagate   * Seagate
     * Barracuda 2-6TB should be SMR     * Barracuda 2-6TB should be SMR
-      * ST2000DM008-2FR102 - Barracuda 2TB = SMR+      * ST2000DM008-2FR102 - Barracuda 2TB = SMR  <-- poor drive, it slowns downs all writes and start clicking after few months
       * ST4000DM004 4TB - Barracuda SMR       * ST4000DM004 4TB - Barracuda SMR
       * ST8000DM004 8TB - Barracuda Compute 5400rpm = SMR       * ST8000DM004 8TB - Barracuda Compute 5400rpm = SMR
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     * Toshiba HDWT720UZSVA 2TB - Surveillance S300 - SMR     * Toshiba HDWT720UZSVA 2TB - Surveillance S300 - SMR
     * Toshiba DT01ACA200 - 2TB - CMR     * Toshiba DT01ACA200 - 2TB - CMR
 +
 +==== WD ====
 +
   * WD   * WD
     * WDC_WD2005FBYZ-01YCBB3 - WD Gold (for NAS/Raid) - CMR     * WDC_WD2005FBYZ-01YCBB3 - WD Gold (for NAS/Raid) - CMR
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     * WD Blue 3,5"     * WD Blue 3,5"
       * SMR: WD20EZAZ, WD40EZAZ, WD60EZAZ, WD30EZAZ, WD20EZBX, WD20EZAZ       * SMR: WD20EZAZ, WD40EZAZ, WD60EZAZ, WD30EZAZ, WD20EZBX, WD20EZAZ
-      * CMR: WD80EAZZ, WD60EAZAX, WD40EZAX, WD30EZAX, WD20EARZ, WD10EZRZ, WD10EZEX, WD5000AZRZ, WD5000AZLX+      * CMR: WD80EAZZ, WD60EAZAX, WD40EZAX, WD30EZAX, WD20EARZ, WD20EZRZ, WD10EZRZ, WD10EZEX, WD5000AZRZ, WD5000AZLX
     * WD Blue 2.5" (WD10SPZX, WD20SPZX) - SMR     * WD Blue 2.5" (WD10SPZX, WD20SPZX) - SMR
     * WD Black 2,5" (WD10SPSX) - SMR     * WD Black 2,5" (WD10SPSX) - SMR
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     * WD80EFAX = CMR     * WD80EFAX = CMR
     * WD101EFAX, WD120EFAX, WD140EFFX - CMR     * WD101EFAX, WD120EFAX, WD140EFFX - CMR
 +  
 +  * HGST
 +    * Ultrastar 7K4000 
 +      * HGST HUS724020 ALS640 - Ultrastar 7K4000 3.5-Inch Enterprise 7200 RPM Hard Disk Drives
 +        * 7200 rpm, 64MB, 3,5", SAS 6Gb/s
 +        * MTBF1 2.0 million hours
 +        * Ultrastar 7K4000 represents the sixth-generation HGST 5-platter design
 +        * Data Buffer (MB) 64
 +        * Rotational Speed (RPM) 7200
 +        * Interface Transfer Rate (MB/s, Max) 600
 +        * Sustained Transfer Rate (MB/s, Typical) 183
 +        * Seek Time (Read, ms, typical) 8.0