|  |
| |
| Item number:
CIEN0-62330167 Manufacturer no.:
4XB7A13658 EAN/GTIN:
n/a |
| |
|
| | |
| ThinkSystem PM1645 Mainstream SAS 12Gb SSDs
The ThinkSystem PM1645 Mainstream SAS 12Gb solid-state drives (SSDs) in capacities of up to 3.2 TBare next-generation high-performance SSDs suitable for a wide range of applications of running onThinkSystem servers. The PM1645 Mainstream SAS 12Gb SSD is shown in the following figure.
Entry SSDs and Mainstream SSDs have similar read and write IOPS performance, but the key differencebetween them is their endurance (or lifetime) (that is, how long they can perform write operations becauseSSDs have a finite number of program/erase (P/E) cycles). Mainstream SSDs have better endurance butlower cost/IOPS ratio compared to Entry SSDs. SSD write endurance is typically measured by the numberof program/erase (P/E) cycles that the drive incurs over its lifetime, listed as the total bytes of written data(TBW) in the device specification.
The TBW value assigned to a solid-state device is the total bytes of written data (based on the number ofP/E cycles) that a drive can be guaranteed to complete (% of remaining P/E cycles = % of remainingTBW). Reaching this limit does not cause the drive to immediately fail. It simply denotes the maximumnumber of writes that can be guaranteed. A solid-state device will not fail upon reaching the specifiedTBW. At some point based on manufacturing variance margin, after surpassing the TBW value, the drivewill reach the end-of-life point, at which the drive will go into a read-only mode.
For example, the 1.6TB PM1645 SSD has an endurance of 8,760 TB of total bytes written (TBW). Thismeans that for full operation over five years, write workload must be limited to no more than 4,800 GB ofwrites per day, which is equivalent to 3.0 full drive writes per day (DWPD). For the device to last threeyears, the drive write workload must be limited to no more than 8,000 GB of writes per day, which isequivalent to 5.0 full drive writes per day. More information: Operational conditions | Operating temperature (T-T) | 0 - 70 °C | | Storage temperature (T-T) | -40 - 85 °C | | Operating relative humidity (H-H) | 5 - 95 % | | Storage relative humidity (H-H) | 5 - 95 % | | Operating vibration | 20 G | | Operating shock | 1500 G | | Maximum operating altitude | 4572 m | Power | Power consumption (read) | 9 W | | Power consumption (write) | 9 W | Technical details | Sustainability certificates | RoHS | | Compliance certificates | RoHS | Features | SSD form factor | 3.5" | | SSD capacity | 1600 GB | | Interface | SAS | | Memory type | 3D NAND | | Component for | Server/workstation | | Data transfer rate | 12 Gbit/s | | Read speed | 1000 MB/s | | Write speed | 1200 MB/s | | Random read (4KB) | 230000 IOPS | | Random write (4KB) | 90000 IOPS | | Read latency | 106 µs | | Write latency | 60 µs | | S.M.A.R.T. support | Yes | | Hot-swap | Yes | | End-to-End Data Protection | Yes | | Uncorrectable Bit Error Rate (UBER) | < 1 per 10^17 bits read | | Mean time between failures (MTBF) | 2000000 h | | TBW rating | 8760 | | Certification | UL,TUV,FCC,IC,CB,CE, C-Tick, BSMI, KCC, VCCI |
|
| | |
| | | |
| Other search terms: Internal hard disks, Internal SSD, Internal SSDs, Internal Solid State Drive, Internal Solid State Drives, Lenovo ThinkSystem accessories, Lenovo ThinkSystem accessory, SAS hard drive, SAS hard disk, SAS hard drives, SAS hard disks, SAS HDD, SCSI hard drive, SCSI hard disk, SCSI hard drives, SCSI hard disks, SSD, SSDs, Solid-state drive, Solid-state drives, Solid-state disk, Solid-state disks, SSD drive, SSD disk, Solid State Disk, Solid State Disks, Solid State Drive, Solid State Drives, internal ssd, internal SSD, internal SSDs, internal solid-state disk, internal solid-state disks |
| | |
| |