TypePad, a developer of self-publishing software for Weblogs, began functioning normally at 3 p.m. PST after dealing with a "catastrophic failure" that crippled its storage system, according to Anil Dash, vice president of TypePads parent company Six Apart Ltd.
The service had been down since Thursday night.
TypePad users were unable to access the service or post entries to their blogs.
"It was one of those perfect storm moments when everything that could go wrong did," Dash said. "But now were back up and running and there is no data lost."
Some blogs may be showing older pages, Dash said, but users should be able to find their newest pages in the system.
"Over the weekend we will be restoring any missing photos or files you uploaded over the past several days," said a statementon the companys Web site.
"We will be providing updates throughout the weekend to status.sixapart.com,and will post any major updates to Everything TypePad."
Reporter and blogger Om Malik hypothesized on his blogthat TypePad was having scalability issues.
"TypePad has been growing so rapidly that it is finding the hard way that scale & scalability matter," he wrote.
TypePad was also the No. 1 result on Technoratis blog searchfor much of the day.
TypePad experienced scalability problems earlier this year. Dash said the recent storage problem is unrelated, and that the problem occurred when the company was trying to increase the services redundancy.