200Gb is large?...we have a VSAM index file here that just points to records within a VSAM ESDS...the index is over 500Gb <g>. The keys themselves are from 10 to 30 bytes each (depending on the type).
K -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Hall, Ken (GTI) Sent: Thursday, April 27, 2006 1:42 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: What file system type to use for LVM ? Mount options NOATIME and NODIRATIME But I don't see those on the current Reiser doc pages. > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of > Phil Tully > Sent: Thursday, April 27, 2006 1:28 PM > To: LINUX-390@VM.MARIST.EDU > Subject: Re: [LINUX-390] What file system type to use for LVM ? > > > David Boyes wrote > > In a earlier life I had implemented Reiserfs for a series > large (200Gb > ) samba filesystems. We experienced significant problems at the peak > access times (9am and 4pm) after many months of hair pulling we found > the culprit. The last referenced field was being updated and locked, > with the lock being held much longer than expected. > > There is an option to turn off updating the last referenced > field but I > can't find my notes from 3 years ago.. When this was resolved we > acheived up to very reasonable response time with hundreds of > concurrent > users. > > Now to find that setting.... > > Phil > > >>Just trying to gauge which is the more popular filesystem > type to use > >> > >> > >for > > > > > >>logical volumes, reiserfs or ext3 and why. > >> > >> > > > >Reiserfs is more popular, because it is the default in SuSE. We've > >observed a fair number of cases where reiserfs fails at very high I/O > >rates, so we tend to use ext3 in places where we know it's > going to get > >beaten hard. reiserfs performs slightly better than ext3 on > filesystems > >that will have a lot of small files (that's its design point > anyway) so > >you may need to mix and match. > > > > > > > >>Seems like reiserfs will allow resizing through the YaST GUI, whilst > >> > >> > >ext3 > > > > > >>filesystems forces CLI interaction. > >> > >> > > > >Install EVMS and use evmsn in place of the YaST storage gui. Then you > >get a nice front end for both, and a whole lot more. > > > -------------------------------------------------------- If you are not an intended recipient of this e-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, retain or redistribute it. Click here for important additional terms relating to this e-mail. http://www.ml.com/email_terms/ -------------------------------------------------------- ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
