Holger Parplies schrieb: > Hi, > > Carl Wilhelm Soderstrom wrote on 2011-05-26 06:05:48 -0500 [Re: > [BackupPC-users] Best FS for BackupPC]: > > On 05/26 12:20 , Adam Goryachev wrote: > > > BTW, specifically related to backuppc, many years ago, reiserfsck was > > > perfect as it doesn't have any concept or limit on 'inodes'... Same for > > > mail and news (nntp) servers. Do XFS/JFS have this feature? I'll look > > > into these things another day, when I have some time :) > > > > There are indeed 'inodes' listed in the 'df -i' output of XFS filesystems. > > However, I've never heard of anyone hitting the inode limit on XFS, unlike > > ext3. > > of course XFS *has* inodes, and I wondered about the 'df -i' output, too, when > I tried it yesterday. I don't remember reiserfs giving any meaningful > information for 'df -i' ... nope, '0 0 0 -'. I sincerely hope that XFS doesn't > have *static inode allocation*, meaning I have to choose the number of inodes > at file system creation time and waste any space I reserve for them but do not > turn out to need. That was one main concern when choosing my pool FS. > Actually, mkfs.xfs(8) explains a parameter '-i maxpct=<value>': > > This specifies the maximum percentage of space in > the filesystem that can be allocated to inodes. The > default value is 25% for filesystems under 1TB, 5% > for filesystems under 50TB and 1% for filesystems > over 50TB. > > The further explanation says this is achieved by the data block allocator > avoiding lower blocks, which are needed for obtaining 32-bit inode numbers. > It leaves two questions unanswered (to me, at least): > ...
have a look at the inode64 mount option. http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_inode64_mount_option_for.3F Ralf ------------------------------------------------------------------------------ vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
