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Found 3 records.

Status: Reported (3)

RFC5664, "Object-Based Parallel NFS (pNFS) Operations", January 2010

Source of RFC: nfsv4 (tsv)

Errata ID: 2017

Status: Reported
Type: Technical

Reported By: Benny Halevy
Date Reported: 2010-01-26

Section 5.4.2 says:

N = L / (W-P * stripe_unit)
L' = N * (W * stripe_unit) +
    (L % (W-P * stripe_unit))

It should say:

N = L / ((W-P) * stripe_unit)
L' = N * (W * stripe_unit) +
    (L % ((W-P) * stripe_unit))

Notes:

Missing parenthesis around lower precedence expression


Errata ID: 2018

Status: Reported
Type: Technical

Reported By: Benny Halevy
Date Reported: 2010-01-26

Section 5.4.3 says:

N = L / (W-1 * stripe_unit)

It should say:

N = L / ((W-1) * stripe_unit)

Notes:

Missing parenthesis around lower precedence expression


Errata ID: 2019

Status: Reported
Type: Editorial

Reported By: Benny Halevy
Date Reported: 2010-01-26

Section 5.4.4 says:

The equations given above for embedded parity can be used to
map a file offset to the correct component object by setting the
number of parity components to 2 instead of 1 for RAID4 or RAID5.

It should say:

The equations given above for embedded parity can be used to
map a file offset to the correct component object by setting the
number of parity components to 2 instead of 1 for RAID5.

Notes:

Clarify that the RAID_PQ algorithm extends the rotated parity scheme as specified for RAID_5.


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