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From: Zdenek Kabelac <zkabelac@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>,
	David Teigland <teigland@redhat.com>,
	"heming.zhao@suse.com" <heming.zhao@suse.com>
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Subject: Re: [linux-lvm] [PATCH] lib/metadata: add new api lv_is_available()
Date: Tue, 1 Sep 2020 13:43:42 +0200	[thread overview]
Message-ID: <d44e29ef-13ad-8218-ee50-ba992d7c0200@redhat.com> (raw)
In-Reply-To: <20200831223724.GB15486@redhat.com>

Dne 01. 09. 20 v 0:37 David Teigland napsal(a):
> On Sun, Aug 30, 2020 at 11:49:38PM +0800, heming.zhao@suse.com wrote:
>> in my opinion, the 'not available'
> 
> We already use the word available/unavailable in other ways, so let's use
> "broken" for the moment, maybe we can find a better word.
> 
> 'lvs -o broken' would report 0|1.  Choosing an attr letter to represent
> that is not as important and can be decided on later.

I'd probably pick the 'opposite' word - i.e.  lvs -o lv_usable -

but ATM - I'm still no sure how the meaning would differ from  'partial'
(which seems like it"s still missing separate lvs attribute shown only through 
health attr column 9 letter).

But we probably need to look much deeper look at the meaning of partial -
which ATM is a simply transitivity enclosure over LV stack - while 
particularly in raid case we need to probably go deeper and device into
categories.

This would also greatly help the current activation logic as well - but we 
probably need to first acknowledge what is 'preferred' view from md raid side 
- as these do not have an exact match.

Zdenek

      parent reply	other threads:[~2020-09-01 11:43 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-27 16:05 Zhao Heming
2020-08-27 16:07 ` heming.zhao
2020-08-28 16:04 ` Zdenek Kabelac
2020-08-28 18:26   ` David Teigland
2020-08-30 15:49     ` heming.zhao
2020-08-30 17:06       ` Zdenek Kabelac
2020-08-31 22:37       ` David Teigland
2020-09-01  9:09         ` heming.zhao
2020-09-01 15:07           ` David Teigland
2020-09-01 16:15             ` heming.zhao
2020-09-01 11:43         ` Zdenek Kabelac [this message]

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