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OS | File System | Characteristic |
|---|---|---|
Solaris | UFS | When using Direct I/O, it is necessary to change the mount option
|
VxFS |
| |
ZFS | As Direct I/O is not supported, DB properties need to be changed.
| |
HP | HFS |
|
JFS | When using Direct I/O, it is necessary to change the mount option. | |
VxFS | When using Direct I/O, it is necessary to change the mount option. | |
AIX | JFS |
|
VxFS |
| |
Windows | NTFS |
|
FAT32 |
| |
Linux | Ext2/Ext3/Ext4 |
|
Unsupported File System
When using ALTIBASE HDB in some of the following file systems that do not support mmap or Direct I/O, a problem may occur.
Raw Storage Device
ALTIBASE HDB cannot be used because it cannot access files composed of raw devices. The purpose of using a raw device in the DB is to directly control the file cache function of the OS in the DB. For this purpose, ALTIBASE HDB can use a file system that supports Direct I/O instead of a raw device.
NFS(Network File System), NAS (Network-attached Storage )
In some NFS/NAS file systems that do not support mmap, errors may occur in the DB creation stage that creates data files and log files.