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Sun, 15 Sep 2024 17:14:41 -0400 (EDT) Date: Sun, 15 Sep 2024 22:14:39 +0100 From: void To: freebsd-fs@freebsd.org Subject: Re: zfs send zvol same feature flags different ashift Message-ID: Mail-Followup-To: freebsd-fs@freebsd.org References: List-Id: Filesystems List-Archive: https://lists.freebsd.org/archives/freebsd-fs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-fs@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.60 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.999]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm1,messagingengine.com:s=fm1]; R_SPF_ALLOW(-0.20)[+ip4:103.168.172.128/27]; MIME_GOOD(-0.10)[text/plain]; RCVD_IN_DNSWL_LOW(-0.10)[103.168.172.152:from]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; PREVIOUSLY_DELIVERED(0.00)[freebsd-fs@freebsd.org]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MLMMJ_DEST(0.00)[freebsd-fs@freebsd.org]; ASN(0.00)[asn:209242, ipnet:103.168.172.0/24, country:US]; RCVD_VIA_SMTP_AUTH(0.00)[]; MISSING_XM_UA(0.00)[]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim] X-Rspamd-Queue-Id: 4X6LQp6JfWz45ZB On Sun, Sep 15, 2024 at 01:48:22PM -0400, Rich wrote: >Smaller ashift will, generally, produce smaller things, because you're only >having to round up to multiples of 512b, not 4096b, with compression, and >even if the volume's data itself is uncompressed, the metadata is not. Hi, What I mean is, can I take a zvol from ashift=9 zpool and import it to an ashift=12 zpool and still expect it to work on the ashift=12 pool ? --