From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Sun, 7 Jan 2018 02:52:21 +0000
From: Alasdair G Kergon <agk@redhat.com>
Message-ID: <20180107025221.GC4551@agk-dp.fab.redhat.com>
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In-Reply-To: <e12eff82-677c-7e91-1697-eb955d1227b7@mglug.de>
Subject: Re: [linux-lvm] new max tag length?
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To: Oliver Rath <rath@mglug.de>
Cc: LVM general discussion and development <linux-lvm@redhat.com>

On Sun, Jan 07, 2018 at 02:04:06AM +0100, Oliver Rath wrote:
> Ive read here, the max length of a tag is 128:
> https://www.suse.com/documentation/sles11/stor_admin/data/lvmtagging.html

The original spec for this work remains in the source tree,
docs/tagging.spec:

+ 1) Tag character set: A-Za-z0-9_+.- 
+    Can't start with hyphen & max length is 128 (NAME_LEN).


Then if you look at WHATS_NEW:

Version 2.02.77 - 22nd November 2010
====================================
...
  Remove tag length restriction and allow / = ! : # & characters.

Alasdair