What file system type to use for LVM ?
Hi Listserv, Just trying to gauge which is the more popular filesystem type to use for logical volumes, reiserfs or ext3 and why. Seems like reiserfs will allow resizing through the YaST GUI, whilst ext3 filesystems forces CLI interaction. Bernie Wu [EMAIL PROTECTED] The information contained in this e-mail message is intended only for the personal and confidential use of the recipient(s) named above. This message may be an attorney-client communication and/or work product and as such is privileged and confidential. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. -- 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
Re: What file system type to use for LVM ?
> 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. -- 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
Re: What file system type to use for LVM ?
I thought there were some data corruption problems with Reiser on s390. Is my impression mistaken? Jon 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. -- 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
Re: What file system type to use for LVM ?
On Apr 27, 2006, at 9:52 AM, Bernard Wu wrote: Hi Listserv, Just trying to gauge which is the more popular filesystem type to use for logical volumes, reiserfs or ext3 and why. Seems like reiserfs will allow resizing through the YaST GUI, whilst ext3 filesystems forces CLI interaction. I have lost data and experienced severe disk corruption on LVM with heavy load using reiserfs. I use ext3 now. Adam -- 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
Re: What file system type to use for LVM ?
> I thought there were some data corruption problems with Reiser on s390. > Is my impression mistaken? That's what I meant by "fail". You have to drive it pretty hard to generate the problem though -- it's some kind of race condition in the journal code that only appears at very high load (formatting a large multivolume LV will trip it about 3 times out of 10). If you don't exceed the threshold, or have lots of small files, you may choose to accept the possibility of failure vs the performance improvement of reiser for lots of small files. If I don't know what the filesystem is going to be used for or what the performance characteristics of the apps are, then ext3 is my default (and is the default for Debian and (I think) RH). I will create reiserfs filesystems for applications that create a zillion small files (like Usenet news spool). That's also the beauty of EVMS. It does a very nice job of letting you pick the right tool for the job AND still have a nice storage management interface at the same time. I really regret that it didn't become the "standard" -- LVM is OK, but its management tools suck. EVMS is a lot more sophisticated from a manageability standpoint, and I suppose I can be happy that EVMS can tell LVM what to do. > > > 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. > -- 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
Re: 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. -- 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
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
Re: What file system type to use for LVM ?
Hall, Ken (GTI) wrote: 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 Thanks Kennoatime is on the general Mount -o command... I also don't see nodiratime -- 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
Re: What file system type to use for LVM ?
200Gb is large?...we have a VSAM index file here that just points to records within a VSAM ESDS...the index is over 500Gb . 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
Re: What file system type to use for LVM ?
Evans, Kevin R wrote: 200Gb is large?...we have a VSAM index file here that just points to records within a VSAM ESDS...the index is over 500Gb . 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 Well to 200gb isn't small, and each samba server was managing multiple 200gb filesystems. So we all define lg and sm differently. Phil -- 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
Re: What file system type to use for LVM ?
On Thu, 27 Apr 2006, Bernard Wu wrote: > Just trying to gauge which is the more popular filesystem type to use for > logical volumes, reiserfs or ext3 and why. > Seems like reiserfs will allow resizing through the YaST GUI, whilst ext3 > filesystems forces CLI interaction. I've been happy with xfs, online expansion of the filesystem is stable and works fine. No complaints on the performance, but then there isn't a whole lot of I/O going on with my guests. Bill Carlson -- Systems Administrator [EMAIL PROTECTED] | Anything is possible, HCIS | given time and money. University of Iowa Hospitals and Clinics | Opinions are mine, not my employer's. | -- 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
Re: What file system type to use for LVM ?
Thanks David, your comment makes a lot of sense. > 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. I took a quick look at EVMS, and it does look quite comprehensive. However, are there any howto's for migrating an existing Linux guest to use EVMS, or installing Linux from scratch but using EVMS during partitioning. Also, are there any gotcha's regarding EVMS and booting up, ie: problems with mkinitrd, zipl . Bernie Wu [EMAIL PROTECTED] The information contained in this e-mail message is intended only for the personal and confidential use of the recipient(s) named above. This message may be an attorney-client communication and/or work product and as such is privileged and confidential. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. -- 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
Re: What file system type to use for LVM ?
On Iau, 2006-04-27 at 13:41 -0400, Hall, Ken (GTI) wrote: > Mount options NOATIME and NODIRATIME > > But I don't see those on the current Reiser doc pages. You wouldn't as they more generic options. Reiserfs does have some specific options such as those to disable tail packing which are documented at that level. Noatime/nodiratime is useful because most users don't do any kind of storage management, but if you are migrating little used data to other media/disks/etc then you need it. -- 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
Re: What file system type to use for LVM ?
As others have said, unless I have a specific reason to choose something else, I always use EXT3 for read-write file systems, and EXT2 for read-only ones. Early on, reiserfs had some problems with big-endian systems, although those have been fixed now. I generally prefer EXT3 because it gives me the option of mounting a file system as either EXT2 or EXT3, as needed. For RHEL users, EXT3 is your only option for a journaling file system. Mark Post -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Bernard Wu Sent: Thursday, April 27, 2006 10:53 AM To: LINUX-390@VM.MARIST.EDU Subject: What file system type to use for LVM ? Hi Listserv, Just trying to gauge which is the more popular filesystem type to use for logical volumes, reiserfs or ext3 and why. Seems like reiserfs will allow resizing through the YaST GUI, whilst ext3 filesystems forces CLI interaction. Bernie Wu [EMAIL PROTECTED] -- 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
