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Re: pg_dump: ERROR: cannot read block 1055 of summary: Input/output error - Mailing list pgsql-admin

From Tom Lane
Subject Re: pg_dump: ERROR: cannot read block 1055 of summary: Input/output error
Date
Msg-id 15183.1056769966@sss.pgh.pa.us
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In response to pg_dump: ERROR: cannot read block 1055 of summary: Input/output error  (Dimitri Nagiev <dnagiev@gmx.de>)
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Dimitri Nagiev <dnagiev@gmx.de> writes:
> using pg_dump I get the following error message:
> pg_dump: ERROR:  cannot read block 1055 of summary: Input/output error
> calls from psql give me similar trouble:
> ERROR:  cannot read block 1055 of summary: Interrupted system call

> There's a good backup from yesterday, but still I am very concerned.

As you should be.  It sounds like your disk has developed a bad sector.
I'd recommend replacing the disk --- where one sector has gone bad,
others may soon follow.

            regards, tom lane

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