'Re: [storage-discuss] migrate built-in iscsi targets to COMSTAR'

[prev in list] [next in list] [prev in thread] [next in thread] 

List:       opensolaris-storage-discuss
Subject:    Re: [storage-discuss] migrate built-in iscsi targets to COMSTAR
From:       James Lever <j () jamver ! id ! au>
Date:       2009-12-28 1:11:28
Message-ID: DC27F390-DD0C-43C4-90C7-4E8195F38DEF () jamver ! id ! au
[Download RAW message or body]

[Attachment #2 (multipart/alternative)]

Hi Robert,

On 28/12/2009, at 12:19 AM, Robert Heinzmann (reg) wrote:

> 1) MetaData Migration
> 
> Legacy (shareiscsi=on) iscsi: Meta data is stored in a zvol property, so outside \
>                 the "data area"
> COMSTAR: up to svn_116 stores the meta data required in first 64KB od the ZVOL \
> itself. This practically means no simple migration path. Starting with svn_116 \
> (http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6736004) thing seems to \
> have changed. 
> See this post for details: \
> http://mail.opensolaris.org/pipermail/storage-discuss/2009-September/007192.html \
> See this ARC documentation: \
> http://arc.opensolaris.org/caselog/PSARC/2009/251/20090421_john.forte 
> So with recent Opensolaris migration should be doable in place - ALTOUGHT - I have \
> not done any yet. So be warned and make backups if you try !!!

Thanks for this set of links, it is exactly what I was looking for (I’ve used COMSTAR \
before and knew about the metadata location issue in COMSTAR but didn’t know it had \
changed.

cheers,
James

[Attachment #5 (unknown)]

<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; \
-webkit-line-break: after-white-space; ">Hi Robert,<div><br></div><div><div><div>On \
28/12/2009, at 12:19 AM, Robert Heinzmann (reg) wrote:</div><br \
class="Apple-interchange-newline"><blockquote type="cite"><span \
class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; \
font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; \
letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; \
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; \
-webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; \
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; \
-webkit-text-stroke-width: 0px; ">1) MetaData Migration<br><br>Legacy (shareiscsi=on) \
iscsi: Meta data is stored in a zvol property, so outside the "data area"<br>COMSTAR: \
up to svn_116 stores the meta data required in first 64KB od the ZVOL itself. This \
practically means no simple migration path. Starting with svn_116 (<a \
href="http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6736004">http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6736004</a>) \
thing seems to have changed.<br><br>See this post for details:<span \
class="Apple-converted-space">&nbsp;</span><a \
href="http://mail.opensolaris.org/pipermail/storage-discuss/2009-September/007192.html \
">http://mail.opensolaris.org/pipermail/storage-discuss/2009-September/007192.html</a><br>See \
this ARC documentation:<span class="Apple-converted-space">&nbsp;</span><a \
href="http://arc.opensolaris.org/caselog/PSARC/2009/251/20090421_john.forte">http://arc.opensolaris.org/caselog/PSARC/2009/251/20090421_john.forte</a><br><br>So \
with recent Opensolaris migration should be doable in place - ALTOUGHT - I have not \
done any yet. So be warned and make backups if you try \
!!!<br></span></blockquote></div><br></div><div>Thanks for this set of links, it is \
exactly what I was looking for (I’ve used COMSTAR before and knew about the metadata \
location issue in COMSTAR but didn’t know it had \
changed.</div><div><br></div><div>cheers,</div><div>James</div><div><br></div></body></html>

_______________________________________________
storage-discuss mailing list
storage-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/storage-discuss

[prev in list] [next in list] [prev in thread] [next in thread] 