By How do I clear a stale file handle?
Try restarting NFS first on the server and then on the clients. This may clear the file handles. Rebooting NFS servers with files opened from other servers is not recommended. This is especially problematic if the open file has been deleted on the server.
What does stale file handle mean?
A file handle becomes stale when the file or directory referenced by the handle is removed by another host/server, while our client still holds an active reference to the object file/directory.
Is Gpfs a block storage?
With the GPFS driver, instances do not actually access a storage device at the block level. Instead, volume backing files are created in a GPFS file system and mapped to instances, which emulate a block device.
What is external mount?
An external mount is the traditional Unix mount: the file system is present in mount and df output, and the files belonging to the file system can be accessed under its mount point. A file system panic is also known as internal unmount.
How do you know if NFS is stale?
every once in a while I’m unable to load my server URL due to stale NFS (diagnosed after the fact). Stale files are usually found using ls -ltR / | grep “\?” , but this usually takes some time (since it goes over all files in a given path).
What is Exportfs in Linux?
exportfs stands for export file system, which exports file system to a remote server which can mount, and access it like a local file system. You can also unexport the directories using exportfs command.
What inodes means?
index node
The inode (index node) is a data structure in a Unix-style file system that describes a file-system object such as a file or a directory. Each inode stores the attributes and disk block locations of the object’s data.
Who owns GPFS?
IBM
GPFS
| Developer(s) | IBM |
| Full name | IBM Spectrum Scale |
| Introduced | 1998 with AIX |
| Limits | |
|---|---|
| Max. volume size | 8 YB |
What are the maximum cluster size that GPFS runs on?
The GPFS disk data structures support file systems with up to 4096 disks of up to 1TB in size each, for a total of 4 petabytes per file system.
How do I recover files from an external hard drive that won’t mount?
Perform a full surface scan of the failed drive to recover any data that is on the drive. Store the recovered data on removable media or on the working computer or attach another storage device to which you can save the recovered data.
What causes stale NFS mounts?
What causes an NFS “stale file handle” error? The answer is any change in the mounted file’s underlying inode, disk device, or inode generation on the NFS server causes an NFS stale filehandle.
How can I resolve A GPFS stale file handle in?
In the ” gpfs02 ” cluster I created mmremotecluster and mmremotefs is configured correctly, but when trying to mount, I get this stale file handle error: [root@gpfs02 ~]# mmmount all Thu Dec 12 18:57:14 IST 2019: mmmount: Mounting file systems mount: mount gpfs02 on /gpfs/storage failed: Stale file handle.
What are some causes of stale NFS file handles?
Clients mounting NFS filesystems report stale file handles. What are some causes of stale file handles and how can they be prevented? I am seeing application logs stating read or write operations on an NFS file, or operations on an NFS directory, complete with errno = 116 (ESTALE).
What is the concept of stale file handle?
First let us try to understand the concept of Stale File Handle. Managing NFS and NIS, 2nd Edition book defines filehandles as follows (a good book if you would like to master NFS and NIS):
Do you need a hard mount for GPFS?
While many users would prefer semantics akin to an NFS hard mount, that would be very hard to do – unlike NFSv3, GPFS is very, very stateful. A mounted file system may eventually need to be unmounted.