5.2.2FORMAT UNIT command execution time for
The device may be formatted as either a Thin Provisioned device or a Fully Provisioned device. The default format is Thin Provisioned and is recommended for most applications. Thin Provisioning provides the most flexibility for the device to manage the flash medium to maximize endurance.
Table 5: | Maximum FORMAT UNIT Times (minutes) |
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Configuration | Format Mode | DCRT Bit |
| IP Bit |
| 400GB |
| 200GB | 100GB | ||||||
| (Default) Thin Provisioned | DCRT = 0 |
| IP = 0 |
| 5 |
| 5 |
| 5 |
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| (Default) Thin Provisioned | DCRT = 1 |
| IP = 0 |
| 5 |
| 5 |
| 5 |
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| Fully Provisioned | DCRT = 0 |
| IP = 1 |
| 140 |
| 60 |
| 30 |
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| Fully Provisioned | DCRT = 1 |
| IP = 1 |
| 100 |
| 40 |
| 20 |
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SED |
| (Default) Thin Provisioned | DCRT = 0 |
| IP = 0 |
| 5 |
| N/A |
| N/A | ||||
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SED |
| (Default) Thin Provisioned | DCRT = 1 |
| IP = 0 |
| 5 |
| N/A |
| N/A | ||||
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SED |
| Fully Provisioned | DCRT = 0 |
| IP = 1 |
| 140 |
| N/A |
| N/A | ||||
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SED |
| Fully Provisioned | DCRT = 1 |
| IP = 1 |
| 100 |
| N/A |
| N/A | ||||
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5.2.3 | Performance |
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Table 6: | Performance |
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| Notes | 400GB |
| 200GB |
| 100GB | ||||
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Maximum Burst Transfer Rate |
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| 600MB/s |
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Peak sequential 128KB read/write data transfer rate (MB/s max) |
| [1] |
| 360/300 |
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Sustained sequential 128KB read/write data transfer rate (MB/s) |
| [1] |
| 300/300 |
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| 300/200 |
| 300/100 | ||||||
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Peak 4KB random read/write command rate (IOPs) |
| [2] |
| 48,000/22,000 |
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Sustained 4KB random read/write command rate (IOPs) |
| [2] |
| 48,000/ |
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| 48,000/ |
| 48,000/ | ||||||
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| 22,000 |
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| 16,000 |
| 8000 | ||
Sustainable 4KB Random combined IOPS for 5 year Endurance |
| [3] |
| 31,000 |
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| 31,000 |
| 31,000 | ||||||
(65%/35% R/W, 70% Duty Cycle) |
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[1]Testing performed at Queue Depth = 32, Sequentially Preconditioned drive, using IOMeter 2006.7.27.
[2]Testing performed at Queue Depth = 32, Randomly Preconditioned drive, using IOMeter 2006.7.27.
[3]Testing performed at Queue Depth = 32,
Note. IOMeter is available at http://www.iometer.org/ or http://sourceforge.net/projects/iometer/.
IOMeter is licensed under the Intel Open Source License and the GNU General Public License. Intel does not endorse any IOMeter results.
Peak performance is defined as the typical best case performance that the product will be able to achieve when the product is preconditioned as mentioned and host commands are aligned on 4KB boundaries.
Sustained performance is defined as the typical worst case performance that the product will be able to achieve when the product is preconditioned as mentioned and host commands are aligned on 4KB boundar- ies. Write values also take into account the worst case performance throttling that may occur to ensure the product meets specified reliability specifications.
12 | Pulsar XT.2 SAS Product Manual, Rev. B |