Dell PowerConnect W-AirWave 7.6 Посібник з вибору розміру сервера - Сторінка 8
Переглянути онлайн або завантажити pdf Посібник з вибору розміру сервера для Сервер Dell PowerConnect W-AirWave 7.6. Dell PowerConnect W-AirWave 7.6 13 сторінок.
Друкувати сторінкуA minimum of six (6) Enterprise SSDs in a RAID 1+0 configuration are required, (Refer to
Storage Matrix" on page 1
1+0 configuration are recommended.
The target random write 4KB IOP Performance is at minimum 3,000 sustained IOPS for 5,000 device monitoring.
The actual disk IOP requirement can vary depending on the configuration of the AirWave server.
NOTE: If you have any questions regarding hardware compatibility or selection, contact Dell support at dell.com/support.
NOTE: AirWave servers servicing more than 2,500 devices require 64-bit OS and AirWave 7.1 or higher. Do not use software RAID
systems or SATA disk drives.
Choosing Your Hard Drives
15K SAS drives are the highest performance spinning platter drives available today. Serial ATA and 10K SAS are
vastly outperformed by 15K SAS and should not be used in an AirWave server.
You will need to select the appropriately sized hard drive to meet your desired storage volume after taking into
account RAID 1+0 reduction on overall storage capacity.
RAID 1+0 reduces your single volume available drive space by ½ because of the redundancy introduced. An example
would be 16x 146GB 15K SAS hard drives in a RAID 1+0 volume will result in approximately 1.1 TB of storage
space [(16*146GB)/ 2].
SSDs vs 15K SAS
Solid State Drives are becoming more affordable and are being offered as a high performance drive option by many
vendors. SSDs offer performance that far outstrips 15K SAS, but at a significant cost premium.
AirWave supports deployment on SSD based storage arrays and can take advantage of the high speed disk access and
stellar random write performance.
To select an appropriate SSD you'll want to ensure that the SSD is classified as "Enterprise" class. This generally
indicates a drive that uses Single Level Cell (SLC) technology versus Multi Level Cell (MLC) technology. SLC
technology is required for an AirWave server to avoid unexpected write exhaustion and/or poor performance due to
write amplification.
Confirm with your vendor prior to purchasing SSDs that their offerings are appropriate for a 24/7 sustained high
random write database server and are not a consumer-grade SSD.
In general, RAID 1+0 is still recommended for SSD deployments to allow for the best overall redundancy and
performance. Any parity based RAID (5/6/etc) is not recommended.
For additional information, please contact Dell support at dell.com/support.
4 | Selecting Your Hardware Components
for minimum needed storage capacity information.) Eight (8) or more SSDs in a RAID
"CPU, Memory, and
Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide