Note: the 8K block size will increase the number of bytes usable, it will DECREASE the total number of blocks in the file system. Picking the block size to format a drive at is a balancing act based on the average file size within the file system and the number of files in the file system.
Ideally you want to pick a size such that the largest number of files fits within the fewest whole blocks with the smallest amount of unused space in the last block. -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of David Booher Sent: Friday, April 16, 2004 12:38 PM To: [EMAIL PROTECTED] Subject: Re: Mod-27 with SLES8: blocksizes OK, I will try 8K block and see if I get better. Thanks! -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Ward, Garry Sent: Friday, April 16, 2004 11:16 AM To: [EMAIL PROTECTED] Subject: Re: [Possible Spam] Mod-27 with SLES8: blocksizes 4K blocks gives between 80 and 90% usage on any 3390 device. Mod-27 changed the number of cylinders/tracks, it didn't change the size of a track, as far as I know. 8K blocks will gain a little more usage per track. -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of David Booher Sent: Friday, April 16, 2004 11:29 AM To: [EMAIL PROTECTED] Subject: [Possible Spam] Mod-27 with SLES8: blocksizes I just formatted a new "mod-27" with dasdfmt -b 4096. I was shocked to see: /dev/dasdg1 23216892 20 22037520 1% /mnt 23.2 Gb??? The mod-27 is supposed to have 25.9 Gb of space. Is there a better blocksize to use without wasting 2.7 Gb of space? Thanks, Dave ---------------------------------------------------------------------- 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 Confidentiality Warning: This e-mail contains information intended only for the use of the individual or entity named above. If the reader of this e-mail is not the intended recipient or the employee or agent responsible for delivering it to the intended recipient, any dissemination, publication or copying of this e-mail is strictly prohibited. The sender does not accept any responsibility for any loss, disruption or damage to your data or computer system that may occur while using data contained in, or transmitted with, this e-mail. If you have received this e-mail in error, please immediately notify us by return e-mail. Thank you. ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
