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Resent-From: Felix Lechner Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Sun, 22 Oct 2023 17:45:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 64259 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: Ludovic =?UTF-8?Q?Court=C3=A8s?= Cc: 64259@debbugs.gnu.org, Andreas Enge Received: via spool by 64259-submit@debbugs.gnu.org id=B64259.169799668912553 (code B ref 64259); Sun, 22 Oct 2023 17:45:01 +0000 Received: (at 64259) by debbugs.gnu.org; 22 Oct 2023 17:44:49 +0000 Received: from localhost ([127.0.0.1]:48030 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qucVN-0003GP-7A for submit@debbugs.gnu.org; Sun, 22 Oct 2023 13:44:49 -0400 Received: from sail-ipv4.us-core.com ([208.82.101.137]:54626) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qucVH-0003Fw-FO for 64259@debbugs.gnu.org; Sun, 22 Oct 2023 13:44:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; s=2017; bh=E5RnrQY+bLYN2vb bXhsht0uLlpV9Zp60Dw1YV7+AG2Y=; h=date:references:in-reply-to:subject: cc:to:from; d=lease-up.com; b=cd3LIDRE4njXvcMUFk8i5dhQTMqTJV88Byi7fWZa tkt5/+6Dc9q6GMmhCUL2yDuGMo9RH6z9EeyuAgVgKJKtmH37JH079mW/XKB2BlutcobVEr sc07RT2cQp3t29XUjhAEtJlzOArNqLPFMsdNZ6kIQNN4gzCD1bujaS7MdhY0k= Received: by sail-ipv4.us-core.com (OpenSMTPD) with ESMTPSA id 3c5c0cd5 (TLSv1.3:TLS_CHACHA20_POLY1305_SHA256:256:NO); Sun, 22 Oct 2023 17:44:13 +0000 (UTC) In-Reply-To: <87bkctt0vh.fsf@gnu.org> References: <4e7eab10caeacfb1f8a0736cdab7154c517b9e36.1687571974.git.felix.lechner@lease-up.com> <87bkctt0vh.fsf@gnu.org> Date: Sun, 22 Oct 2023 10:44:13 -0700 Message-ID: <87fs22pn6a.fsf@lease-up.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Felix Lechner X-ACL-Warn: , Felix Lechner via Guix-patches From: Felix Lechner via Guix-patches via Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: guix-patches-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US X-Spam-Score: -6.62 X-Migadu-Queue-Id: 2EAE7477D4 X-Migadu-Scanner: mx0.migadu.com X-Migadu-Spam-Score: -6.62 X-TUID: otN89U8ZHoH8 Hi, Thanks for looking at my patch! On Fri, Oct 20 2023, Ludovic Court=C3=A8s wrote: > Could ... the device names specified in > the =E2=80=98source=E2=80=99 field of the mapped device become invalid? In RAID failures, the devices for defective components usually stop functioning as intended or become unavailable altogether. Listing those devices on the mdadm command line, however, requires them to be present for the assembly of the array. For the fault-tolerant behavior people expect, arrays should be started via the array name or the special UUID. > try and use =E2=80=98define-deprecated=E2=80=99. Yes, thank you! I will do so and deploy locally before I update the patch herein. > Instead of =E2=80=9Csee Mdadm documentation=E2=80=9D, could you add a lin= k or a command > to type to access said documentation? Upon review, I am not sure that the mdadm documentation is actually very helpful. I must have been thinking about third-party sites. > Better yet, an example of what an > mdadm device name or UUID is and how to obtain it would be welcome. Yes, I will include examples on how to access both, and how to change the "array name." The latter can be a chosen string that is optionally prefaced by the local host name. The array name is not the same as the device name, which looks like /dev/md12. I shall clarify all that in the revised patch. >> + (if (and array-selector md-device) > ^ > This condition is always true. Okay, I may not know Guile macros well enough. > Instead of renaming and duplicating part of the logic, how about > supporting those new =E2=80=98source=E2=80=99 specification right in =E2= =80=98open-raid-device=E2=80=99? > It would emit a deprecation warning when =E2=80=98source=E2=80=99 is a li= st of strings. It's an good idea, but many other file systems offer RAID-type functionality. Do you think that a raid-device-mapping based on mdadm occupies a fair share in the common name space? > Does the busy wait loop currently in =E2=80=98open-raid-device=E2=80=99 n= eed to be > preserved? I personally do not believe so but I'll defer to Andreas Enge, whom I copied on this message. I believe Andreas wrote the original device mapping. Kind regards Felix