I think we are on the same page. However, you pointed out that if both system have R/W access there are potential problems, which is true. There is also a potential problem if one system has read only access and another has R/W access.
The point is that you can only safely share if all systems sharing have read only access, unless you use a cluster filesystem. -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of David Boyes Sent: Friday, April 06, 2007 10:49 AM To: [email protected] Subject: Re: Pros/Cons of FCP connection DASD You will have problems if any system writes to a shared filesystem. The > buffering in Unix, Linux and Windows will make a filesystem inconsistent > unless the filesystem has some kind of clustering support built in. Thus the comment on coordinating access... > You still > need to coordinate access if both systems have R/W access to a volume at > the same time, but the data is directly accessible. Lustre, OpenAFS and GFS do well here. GPFS less well, due to more limited platform support. ---------------------------------------------------------------------- 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
