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From: Daniel Phillips <daniel@phunq.net>
To: Andreas Dilger <adilger@dilger.ca>
Cc: "Theodore Y. Ts'o" <tytso@mit.edu>,
	linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org,
	OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Subject: Re: [RFC] Thing 1: Shardmap fox Ext4
Date: Wed, 4 Dec 2019 12:53:28 -0800
Message-ID: <57e71e35-b3a4-67e8-d5db-af3b41e9230a@phunq.net> (raw)
In-Reply-To: <22c57727-2826-8945-1964-66e66fe82d39@phunq.net>



On 2019-12-04 12:47 p.m., Daniel Phillips wrote:
> On 2019-12-04 10:03 a.m., Andreas Dilger wrote:
>>> Here is a pretty picture to get started:
>>>
>>>     https://github.com/danielbot/Shardmap/wiki/Shardmap-media-format
>>
>> The shardmap diagram is good conceptually, but it would be useful
>> to add a legend on the empty side of the diagram that shows the on-disk
>> structures.
> 
> Sounds good, but not sure exactly what you had in mind. Fields of a
> shard entry? Fields of the block 0 header? The record entry block has
> its own diagram, and is polymorphic anyway, so no fixed format.

Ah, the legend can explain that lower tier shard 2 is in process of
being split into upper tier shards 4 and 5, and label the shards
with offset numbers.

  reply index

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-27  1:47 Daniel Phillips
2019-11-27  7:40 ` Vyacheslav Dubeyko
2019-11-27  8:28   ` Daniel Phillips
2019-11-27 19:35     ` Viacheslav Dubeyko
2019-11-28  2:54       ` Daniel Phillips
2019-11-28  9:15         ` Andreas Dilger
2019-11-28 10:03           ` Daniel Phillips
2019-11-27 14:25 ` Theodore Y. Ts'o
2019-11-27 22:27   ` Daniel Phillips
2019-11-28  2:28     ` Theodore Y. Ts'o
2019-11-28  4:27       ` Daniel Phillips
2019-11-30 17:50         ` Theodore Y. Ts'o
2019-12-01  8:21           ` Daniel Phillips
2019-12-04 18:31             ` Andreas Dilger
2019-12-04 21:44               ` Daniel Phillips
2019-12-05  0:36                 ` Andreas Dilger
2019-12-05  2:27                   ` [RFC] Thing 1: Shardmap for Ext4 Daniel Phillips
2019-12-04 23:41               ` [RFC] Thing 1: Shardmap fox Ext4 Theodore Y. Ts'o
2019-12-06  1:16                 ` Dave Chinner
2019-12-06  5:09                   ` [RFC] Thing 1: Shardmap for Ext4 Daniel Phillips
2019-11-28 21:17       ` [RFC] Thing 1: Shardmap fox Ext4 Daniel Phillips
2019-12-02  1:45   ` Daniel Phillips
2019-12-04 15:55     ` Vyacheslav Dubeyko
2019-12-05  9:46       ` Daniel Phillips
2019-12-06 11:47         ` Vyacheslav Dubeyko
2019-12-07  0:46           ` [RFC] Thing 1: Shardmap for Ext4 Daniel Phillips
2019-12-04 18:03     ` [RFC] Thing 1: Shardmap fox Ext4 Andreas Dilger
2019-12-04 20:47       ` Daniel Phillips
2019-12-04 20:53         ` Daniel Phillips [this message]
2019-12-05  5:59           ` Daniel Phillips

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