Every stackable file system caches the data at its own level and
copies it from/to the lower file system's cached pages when necessary.
...
this effectively reduces the system's cache memory size by two or more
times.
It should not be that bad with a decent cache replacement policy; I
3. A known ideal solution for this problem is sharing of the cached pages
between file systems. We attempted to do it for Tracefs but the
resulting code is not beautiful and is potentially racy:
http://marc.theaimsgroup.com/?l=linux-fsdevelm=113193082115222w=2
Unfortunately,
.
-
Nikolai Joukov, Ph.D.
Filesystems and Storage Laboratory
Stony Brook University
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a lot!
Nikolai.
-
Nikolai Joukov, Ph.D.
Filesystems and Storage Laboratory
Stony Brook University
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Nikolai Joukov wrote:
Nikolai Joukov wrote:
We have designed a new stackable file system that we called RAIF:
Redundant Array of Independent Filesystems.
Great!
We have performed some benchmarking on a 3GHz PC with 2GB of RAM and
U320 SCSI disks. Compared to the Linux
Nikolai Joukov wrote:
We started the project in April 2004. Right now I am using it as my
/home/kolya file system at home. We believe that at this stage RAIF
is mature enough for others to try it out. The code is available at:
ftp://ftp.fsl.cs.sunysb.edu/pub/raif
On Wednesday 13 December 2006 12:47, Nikolai Joukov wrote:
We have designed a new stackable file system that we called RAIF:
Redundant Array of Independent Filesystems
Do you have a function similar to an an EMC cloneset? Basicily a cloneset
tracks what has changed in both the source
.
Nikolai.
-
Nikolai Joukov, Ph.D.
Filesystems and Storage Laboratory
Stony Brook University
-
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Nikolai Joukov wrote:
We have designed a new stackable file system that we called RAIF:
Redundant Array of Independent Filesystems.
Great!
We have performed some benchmarking on a 3GHz PC with 2GB of RAM and U320
SCSI disks. Compared to the Linux RAID driver, RAIF has overheads
.
Nikolai.
-
Nikolai Joukov, Ph.D.
Filesystems and Storage Laboratory
Stony Brook University
-
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/pub/raif/
Nikolai.
-
Nikolai Joukov, Ph.D.
Filesystems and Storage Laboratory
Stony Brook University
-
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