前々から有ったと思うんだが、Win鯖でディスクの管理から論理パーテーションを作って、ドライブ文字列割り当てずにフォーマットってすると失敗する。
　フォーマットしてからドライブ文字列削除するのはOK。にゃんぞRAID関連の絡みにゃのか仕様にゃのか不明。

　Winでファイル鯖組むのにとりあえずメモ。

fsutil behavior set disablelastaccess 1

　はいいとして、

fsutil behavior set mftzone 3

　とか。

mftzoneValue
The master file table (MFT) Zone is a reserved area that enables the MFT to expand as needed, in order to prevent MFT fragmentation. Set the Value from 1 (default) to 4 (maximum). The Value is in 8ths of the disk. If the average file size on the volume is 2 KB or less, then it can be beneficial to set the Value to 2. If the average file size on the volume 1 KB or less, then it can be beneficial to set the Value to 4.
The Value is an approximation of the initial size of the MFT plus the MFT Zone on a new volume and is set at mount time for each file system. As space on the volume is used, NTFS adjusts the space reserved for future MFT growth. If the MFT Zone is already large, the full MFT Zone size is not reserved again. Since the MFT Zone is based on the contiguous range past the end of the MFT, it shrinks as the space is used.
The file system does not redetermine the MFT Zone location until the current MFT Zone is completely used. This never occurs on a typical system.

　にゃのでデフォの12.5%は少にゃすぎでしょってことで25%〜37.5%を指定しとくのがよさそう。
　それから、

fsutil behavior set memoryusage 2

　は、

memoryusageValue
Configures the internal cache levels of NTFS paged pool and NTFS non-paged pool memory. Set to 1 or 2. When set to 1 (the default), NTFS uses the default amount of paged pool memory. When set to 2, NTFS increases the size of its lookaside lists and memory thresholds. A lookaside list is a pool of fixed-size kernel memory buffers that the kernel and device drivers create as private memory caches for file system operations, such as reading a file.
Increasing physical memory does not always increase the amount of paged pool memory available to NTFS. Setting memoryusage to 2 raises the limit of paged pool memory. This might improve performance if your system is opening and closing many files in the same file set and is not already using large amounts of system memory for other applications or for cache memory. If your computer is already using large amounts of system memory for other applications or for cache memory, increasing the limit of NTFS paged and non-paged pool memory reduces the available pool memory for other processes. This might reduce overall system performance.
This parameter updates the
HKLM\SYSTEM\CurrentControlSet\Control\FileSystem\NtfsMemoryUsage
registry key.

　とある。どの程度差が出てくるのかわからんが損は無さそう。