Hi,
We recently purchased Netapp E5460 running on Santricity 10.86 with 30x 900GB SAS 10krpm, 10x2000GB NL-SAS 7.2Krpm and 4x900 SSDs. The suggestion is to layout the disks as follows so that it can optimise drawer loss protection:
Drawer 1 - consists of 1x900 SSD, 2x2000NL-SAS, and 6x900GB SAS (left to right starting from the first row)
Drawer 2 - consists of 1x900 SSD, 2x2000NL-SAS, and 6x900GB SAS (left to right starting from the first row)
Drawer 3 - consists of 1x900 SSD, 2x2000NL-SAS, and 6x900GB SAS (left to right starting from the first row)
Drawer 4 - consists of 1x900 SSD, 2x2000NL-SAS, and 6x900GB SAS (left to right starting from the first row)
Drawer 5 - consists of 2x2000NL-SAS, and 6x900GB SAS (left to right starting from the first row)
However, the engineer who is installing the Netapp is suggesting that all drives of the same type should be on the same drawer because of performance issues. If that is the case, the layout would be as follows:
Drawer 1 - consists of 4 x 900GB SSD (left to right starting from the first row)
Drawer 2 - consist of 10 x 900GB SAS (left to right starting from the first row)
Drawer 3 - consists of 10 x 900GB SAS (left to right starting from the first row)
Drawer 4 - consists of 10 x 900 GB SAS (left to right starting from the first row)
Drawer 5 - consists of 10 x 2000 GB NL-SA (left to right starting from the first row)
I have been browsing the Netapp website and other Netapp documents on E5460 but cannot find any explanation on best practice on mix drives layout on E series.
Comments are appreciated.
Regards
H Tina