Windows Drive Letters
Check
diskpart
diskpart
list volume
Powershell
Get-Disk
Get-PSDrive -PSProvider FileSystem
Assign Drive Letters
diskpart
diskpart
list volume
select volume 3
assign letter=Z
Powershell
Get-Disk
Get-Partition -DiskNumber 1 | Set-Partition -NewDriveLetter Z
SQL Server
An example drive layout for a typical SQL Server implementation...
C: - Operating System
minimum is 40 GB, more if additional software is required
normal virtual disks
D: - Admin drive
about 10GB
normal virtual disks
E: - MS SQL data files
dependent on number of databases and estimated growth, usually starts from 50 GB
RDM disk - individual LUN for partition from SAN, drive partition with an offset of 1024K, 64KB bytes per cluster as the SQL Server allocation unit is 8 x 8KB pages.
F: - MS SQL transaction log files
dependent on number of databases, usually about 30-40% of space used for E:
RDM disk - individual LUN for partition from SAN, drive partition with an offset of 1024K, 64KB bytes per cluster as the SQL Server allocation unit is 8 x 8KB pages.
T: - MS SQL tempdb
dependent on estimated system activity, usually start from 20-30 GB, can be skipped on test instance
RDM disk - individual LUN for partition from SAN, drive partition with an offset of 1024K, 64KB bytes per cluster as the SQL Server allocation unit is 8 x 8KB pages.
G: - MS SQL backups
dependent of number of databases and estimated growth, usually about 2 x space used for E: but may be 1 x E: if MS SQL allows backup compression
RDM disk - individual LUN for partition from SAN, drive partition with an offset of 1024K